I think every demo racquet should be strung with 16 gauge POSG (no duraflex). It is the ultimate string for figuring out what you need on your next string job. So I bought some new sticks and had posg put in there at 56#s. So far I have logged 6 hours and the string is still intact. The key part is that I use tight 18x20 patterns. This is a luxury of that. I believe in this racquet I could get 9-10 hours out of this string job. In an open pattern, I used to get 4-6 max. String movement is there, but its not that bad at all. Second disclaimer - I grew up using this stuff, so I may be biased. Observations are that the racquet plays with incredible feel and consistency. the spin is middle of the road, but I still get good spin. The ball drops in just like with poly for me. Arm comfort is through the roof, but it is a crisper string so the ball feel is far better than a multi (to me). That is my preference only and not a rule. I am strongly considering just using this setup. Before I make any decision, I will go back to a poly main to see what changes. But if I don't really notice a huge difference in spin (I have some great spin polys so it will need to be obvious), I may continue down the full syn gut path unless I just break strings way too often. I think to do it right, you need to have a minimum of 2 sticks, and 3-4 would be optimal. I think it is probably also super key to have a tight patterned stick. But here are some benefits that I see : Your strings will break before they die unless you are not a heavy hitter. You can leave your sticks in the bag and not worry about them dying after a while. You will always have a fresh string job when it is time (instead of playing with dead poly mains in an attempt to wring more life out of the stringbed). If you use a tight pattern, you will be able to get 6-10 hours out of this setup. Most people play that amount per week on average, so you will string up 1 stick a week - about the same as with poly for me. To add - that would mean string costs just went down - a lot. If you have your own stringing machine and a reel of POSG, you are spending around $3 a string job. I saw another thread made about this a while back..was wondering who else has gone from poly to full syn gut and how it has gone. I still need to compare side by side both setups before I make a decision..I also have to make sure that I can get decent life out of the string. But so far I have to say this setup is rather great.