grip changes and the backhand sidespin loop

hi

when I'm playing matches i tend to change grips b\w BH and FH, using the normal grip for my FH and rotating and lowering it a bit for my BH, i can play most BH strokes with my FH grip and vice versa but my BH grip allows me to use more of my wrist and add more power. Should i continue playing the same way or should i use a neutral grip I've noticed players like Boll and Maze using different grips for FH and BH.

I recently saw your video lesson for the BH side-spin flick and found it to be very helpful, I use a similar stroke in my game but its more like a BH side-spin loop which i use to attack longer balls and it's won me a lot of points lately, should i continue using this stroke or will it mess up my technique for the normal BH loop(which is very handy for attacking long backspin serves to the BH)