RE: Sims S-coil and Muzzy Zero Effect
I used the Zero Effect several years ago right after they were first introduced. Other than the overall size of the rest I really did not have anything negative to say about it. I did prefer its linkage system to many of the others currently on the market.
The S-coil is something I currently use and have been using since they debuted. It is refreshing when an archery company comes out with a piece of equipment that actually bucks the trend towards the more expensive without compromising real performance. This stabilizer works and works well for considerably less than many stabilizers on the market.
Good choices in my opinion.