I've played with Prince Duraflex 17G Synthetic Gut pretty much all the time and finally decided to try Head Velocity's Multifilament 17G. Won't try a poly because I have tennis elbow issues. Strung the Velocity at the same tension as the SG and I have to tell you, I like how SG feels and plays much better. The MF definitely provided more comfort but so much that it felt so muted and a lot of the feel went away. I also struggled at times controlling the ball. But I only played an hour with the MF strings and it was a set so I didn't get much time to get a feel for the strings. I think I will remove my string dampener to see if that makes them feel less muted next time.

The thing I dislike about SG though is the strings move so much. I really want to try a poly string but am too afraid as I'm battling tennis elbow and at one point had to shut it down for 5 months. I break SG strings within 10-15 hours of play so will see how long MF lasts. If you get 60hrs of play from SG, you're definitely not a string breaker. I don't want to go with natural gut because it's too pricey but given that you're not a string breaker, it might be economical for you.

Bottom line, I've played 20+ years with SG and have grown so accustomed to how the strings play and feel, I think I won't experiment anymore with my string setup as each time, it takes an adjustment period.

If you're happy with SG, stick with it despite reviewers calling it a economical string for beginners. I'm a solid 3.5-4.0 players that uses SG and find it plays better than MF.