I love grip adapters, but have found the extra clip on BK grips to be a significant improvement.
One gun that I really didn't like with a grip adapter is my 686. I find the 686 to be the most awkward handling gun I own, and so far the only grip I like on it is the Pachmayr Compac Pro. I actually was about to sell it before I got the Pachmayr and it started to fit my hand better. I think the rubber front strap helps offset the top heavy balance of the L frame. I'll add that the Compac Pro is just about the perfect approximation of magnas and a t-grip, and it boggles my mind why someone doesn't make a wood version of it.
One gun that I really didn't like with a grip adapter is my 686. I find the 686 to be the most awkward handling gun I own, and so far the only grip I like on it is the Pachmayr Compac Pro. I actually was about to sell it before I got the Pachmayr and it started to fit my hand better. I think the rubber front strap helps offset the top heavy balance of the L frame. I'll add that the Compac Pro is just about the perfect approximation of magnas and a t-grip, and it boggles my mind why someone doesn't make a wood version of it.