I just bought a slab-side Competition model. I would say, get the bull barrel model. The longer slab barrel is a bit muzzle-heavy. You'll have to replace the grips, so those aren't an advantage (Ruger and Hogue both make left-handed thumbrest grips, get some, they're great). The included scope mount & rings on the Competition model is... well not quite worthless, but close. Chances are, if you're going to put optics on your Ruger it's going to be a red dot, and 95% of the red dots out there are either 30mm or have integral "rings", but the Ruger mount&rings are 1", and proprietary at that. I've got a Simmons red dot here that I'm thinking of putting on the Ruger, but if I do I'll need a new mount (looking at a Wiegand Combat mount).