250 ninja shifter troubles

[marcusb]

I took a little slide on the non drive side of the bike and scuffed a few spots and also bent the rear break lever up a bit( i mention this only because they seem to be linked together, I know the bent brake isn't affecting the shifting). Since then it has popped out of first a few times, and to my foot it also feels like it doesn't quite go down far enough and engage fully. Is this a simple adjustment on the linkage, I see the threads and lock nuts, would I lengthen it or shorten the span to get better engagement?

I have seen some nice cnc'ed "rear sets" (shifter, brake, Linkage)which seem to be a fair price, and I am sure would be lighter than stock. Is there any other advantage to these?

Thanks