To be honest, I don’t review synthetic gut strings very often. In the past, most of them have been very similar, with only a few differences in feel and durability. The Prince Synthetic Gut Duraflex has always been the one that stands out the most over the years.
That being said, I wanted to spend the right amount of time with Solinco Pro Stacked because it’s one of the strings my customers ask for the most, especially those who want comfort, reliability and value. I can say with confidence that Pro Stacked is an underrated, no-nonsense synthetic gut that gives players exactly what they need after testing it and seeing how it works with a lot of different players.
It won’t wow you with crazy spins or big pops, but that’s not what it’s meant to do.
Tech & specs
- Profile: Round
- Gauge: 1.30mm / 16
- Material: Synthetic Gut
- Available Colors: White
Playtest Impressions
Solinco Pro Stacked offers predictably, stability and excellent playability after several hours hitting. There isn’t a big break-in period, nor a sudden change in launch angle, or a sharp drop-off after a few sessions. You get mostly the same thing on hour one as you do on hour eight, and that is its biggest strength.
The power is in the middle range. It gives you enough depth without the trampoline effect that some softer nylons have. This makes it good for players who swing a little flatter or want more control on approach shots. The string’s surface and solid snap-back help it get more spin than most synthetic guts, but it won’t ever be good as polyester.
The comfort is good. Not “multifilament plush,” but it’s easy on the arm and much more forgiving than polys. This is a good choice for juniors, club players, and anyone who has trouble with arm sensitivity. Touch shots and volleys feel real and connected, and the predictable response helps build confidence at the net.
Pro Stacked really shines when it comes to holding tension. It lasts longer than many cheaper synthetic guts, doesn’t fray easily in the thicker gauges, and doesn’t get mushy too quickly.
Pros & Cons
Pros
- Excellent tension stability for a synthetic gut
- Above-average spin for its a synthetic gut
- Comfortable and arm-friendly
- Predictable, linear response
- Very good durability
- Strong value for money
- Ideal for frequent players who find poly too firm
Cons
- Won’t deliver modern poly-level spin or snap
- Power is controlled rather than lively
- Feel is solid but not “luxury plush”
Who this suits
Best For:
- Club players prioritising durability and tension holding
- Players with arm sensitivity avoiding polyester
- Flat or moderately topspin hitters
- Budget-conscious players who restring regularly
Not For:
- Heavy topspin baseliners chasing maximum RPM
- Players wanting explosive power or modern snap-back
- Those expecting premium multifilament feel
Comparable strings
If you’re considering Solinco Pro Stacked, these are the closest real-world alternatives:
- Prince Synthetic Gut Duraflex – Still the benchmark; slightly crisper and more iconic.
- Wilson Synthetic Gut Power – A bit livelier, but not as durable.
- Babolat Synthetic Gut – Softer feel, less longevity.
- Tecnifibre Synthetic Gut – smooth, easy-power synthetic gut with a lively feel, a bit softer and less tension-stable than Pro Stacked.
Final verdict
Solinco Pro Stacked is a great synthetic gut that doesn’t make a lot of noise. It doesn’t try to be flashy, and it doesn’t have to be. What it offers is reliability, comfort, durability and value.
I still think Prince Synthetic Gut Duraflex is the best, but Pro Stacked is a very close second in my view and deserves more attention than it gets. It’s hard to go wrong here if you want a string that you can recommend or use with confidence, especially for juniors, club players, or hitters with sensitive arms.
The strings that sound the most boring are sometimes the ones that keep players happy the longest.