Tough choice you've set for yourself!
Had a custom cadex build in the past, absolutely great from the bench but thats what it was meant for. No hunting with a 15lb build.
S20 is great. Took it out on one hunt so far, held up nicely during its fielding. Have both stocks and like the interchangeability between target and hunter setups. Hunter stock is wildly comfortable if you're RH. I have the .308 with 20in barrel and have had very little to complain about regarding accuracy. As another post said it seems to be hit or miss with different owners, pun intended.
Tried my hand at painting it and enjoy it even more now.