Thinking of purchasing a double J featherlite... opinions? good saddle? good quality? pros and cons? 

I have 2 and love them!  I normally ride in a 13" seat, but tried a 12.5", and it fit about the same.  Not tight or binding.f  The first time I ran in it, I actually rode better and my horse performed great.  I stay in the saddle better.  I even rode in it on a young, inexperienced horse that started bucking during a a run, and I didn't loose my seat during several jumps of bucking.  The saddle is very light and easy to handle.  Quality is good and well made. Hope this helps.