If the poly is giving you 80 hours before it breaks and you don't mind dead poly for your arm or the decreased performance, sticking with the poly is fine - I myself wouldn't do it because of arm worries.
I like kevlar stringbeds and have tried most of the pre-packaged sets with the syngut crosses. They last a long time and perform well if you are used to them. I really like ToughGut crosses at higher expense, but more comfortable and more feel, spin, and power. I wore through the kevlar before the gut broke.
Also, I don't understand why people think 100+ hours a week is outrageous. If you don't have a job and you want to improve, why would you practice less than 4 hours per day? (You are not a kid worried about damages to growing joints or old enough to not be able to play that much and stay healthy) When my college roommate and I graduated college and didn't yet have jobs we practiced 8 to 12 hours per day. (Of course,not having jobs, we didn't have much money)
Last edited by NLBwell; 12-03-2012 at 11:20 PM.