I can't make a recommendation because i've never used the BStinger or Smooth Stability. I like both the designs and the tourny win list for the Stinger's is a mile long so they definatly work.

I can say that most hunting setup with a BStinger are using a 8.5" 11 oz stabilizer. That's what most people on AT recommend.

If your interested in either, give them a call. Customer service is supossed to be top notch at both companies.

good luck!