Upper grip area different on SP-01 Tac vs Shadow 2?

[Dagda]

Is the upper grip area on certain fullsize models different right around the thumb/ index web area? I've seen a grip advertised to work on S2 or SP-01 Tac, but they look a bit different.

[matto]

Sp-01 and Shadow 2 can swap grips.  If you look at grips like LOK they make it clear you cz use them on either.

The shadow 2 grips tend to be narrower at the top.  My favorite grips in my Shadow 2 are LOK "standard" SP-01 grips but made with extra thickness.  They are far fatter up top where it really matters.