Lok Bogies are great and very aggressive. They come in three thickness variants: thin, standard, and palm swell. They also have the two styles, the standard 75 series and the Shadow 2 series (not sure if this applies to the 97 Variant?). The difference is how thick they are at the top of the grip with the shadow 2 style having a slimmer profile at the top. I have the shadow 2 palm swells and really like the feel and fit on my TSO's. I have large hands and run the palm swells on my TSO's.
I have the CGW extended mag release on my 97 and LOK thin bogies. I could use a thicker grip but it is good enough for now. You may also want to contact David and see if he can make the 97 mag release a paddle release like the shadow 2 variant. Then you could have the paddle farther rearward. Once I got the extended release, I didn't have to shift my hand to activate the release. It depends on your hand size.
Cheers,
Toby