I have the 12 gauge slugger.
Recoil is stout but managable.
I only shoot 2-3/4" sabots. Have not tried 3" but I'm sure they hurt.
The load I use is the Federal Premium 2-3/4" , solid copper Barnes Expander 3/4 oz sabots @ 1900 FPS. These slugs are VERY expensive (around $2.00 each). Accuracy is exceptional.
This is my first year hunting with the Encore so I went with iron sights.
I can see the potential for "scope eye" if one is not careful.
The only problem I've had with the Encore is with the wood.
Cracked in the pistol grip area. TC sent a new one at no charge.
I'm going to order a Virgin Valley Kevlar stock as soon as I can raise the funds.