I just got a few sets of Toroline’s high-performance round polys, including the new A5 and the Enso Pro, which is a fan favorite. Right away, I’d say that Enso Pro is the better choice for a lot of players because it’s more well-rounded and easy to like. On the other hand, Toroline A5 is the more aggressive and responsive version that needs a faster swing to really open up.
Enso Pro is the safest choice for most club and competitive players because it combines power, a soft feel, and comfort in a way that feels more natural. If you want the most snapback, a sharper response, and a more connected feel when you swing fast, I would choose A5.
Tech & specs
Toroline Enso Pro
- Type: Co-polyester monofilament
- Shape: Round
- Feel: Soft / Plush
- Power: Moderate to high
- Spin: Moderate (High snapback)
- Key trait: Ball pocketing + comfort
Full review of Toroline Enso Pro.
Toroline A5
- Type: Co-polyester monofilament
- Shape: Round
- Feel: Crisp / Firm
- Power: Low to moderate
- Spin: High (Elite snapback)
- Key trait: Precision + tension stability
More about the Toroline A5 strings.
On-court feel
Enso Pro seems more complete and forgiving to me. The response is cleaner and a little smoother off the bed, and there is a little more easy depth without feeling wild. This is in line with what Toroline says about its better ball pocketing and higher feel. When you serve, it has a “boomy” feel that makes it quite fun to hit with.
A5, on the other hand, is the better choice for accuracy. The stringbed feels sharper and a little harder, and the ball seems to come off with more direct feedback and a “connected” response. If you’re not hitting the sweet spot, it can feel a little stiff at times. I thought the sweet spot for me was around 48 pounds in a controlled 98-square-inch frame. It seems to work better for modern player frames by keeping their natural “launchiness” in check.
Spin, control and launch
In my opinion, this is where A5 has the edge. The ultra-low friction surface is clearly meant to give you the most snapback, even though it is round. I was really impressed with the spin on this string. The launch feels a little more controlled, the ball shape is heavier, and the overall response is more directional, especially if you set your own pace.
Enso Pro still generates spin, but it doesn’t feel as “reactive” as A5. It feels more natural and less “stiff,” which is good for players who don’t want the stringbed to feel too mechanical or like they have to fight the string to get the ball deep.
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Comfort and playability
Enso Pro is the better choice if you want comfort. I think it’s a great choice for players who want a modern poly response but don’t want the harshness of some control-oriented strings. It does feel slightly easier on your arms and it sounds and feels softer on contact.
Toroline says A5 is responsive and crisp, but I think that feedback came at the cost of a firmer feel, which can be a little too stiff for sensitive arms at times. When you actually swing through, it feels like the kind of string that rewards clean, aggressive contact more than defensive pokes.
That makes it easy to split. I’d choose Enso Pro for overall playability and A5 if you want the most snapback spin but want it to be firm and controlled.
Durability and tension stability
Both strings hold their tension reasonably well, although I’d say A5 edges it here. Toroline seems to state that neither is being sold as a soft, short-lived poly that bags out after one session. That is fair I’d say, but you will get a little bit longer life out of A5 in my view.
I like to assess strings after about 10 hours of play to see what happens when tension drops off. When Enso Pro gets softer, you lose some of that “pocketing” control, and after a few hours of heavy hitting, the strings can feel a little bouncy or springy. A5, on the other hand, seems to keep its sharpness and ability to control direction for a lot longer. I also thought it was still fun to play after a few rounds of hitting, and the notch-resistance was great.
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Who each string suits
Toroline Enso Pro suits:
- Players who want an all-round co-poly with a plush response.
- Baseliners who value easy depth and comfort but want good snapback spin.
- Hybrid users looking for the perfect, slick cross-string to pair with a shaped main.
Toroline A5 suits:
- Aggressive baseliners who want more “connected” feedback and directional control.
- Competitive players who swing fast and want a predictable, lower trajectory.
- Advanced players looking for an “Alu Power” alternative with better tension maintenance.
Verdict
I think most players would choose Enso Pro because it feels more balanced and works with a wider range of racquets and styles of play. It has a smooth, controlled response that usually works right away with little to no adjustments or arm fatigue.
In my opinion, A5 feels like the more specialized string, and everything about its design seems to be made for players who swing with purpose and want a firmer, more aggressive response.
So, to summarize; Enso Pro is better for a wider range of players, but A5 is better if you want to be very precise and have a snapback (but with a firmer feel). Choose Enso Pro if you want a friendlier all-arounder.