Originally Posted by Chotobaka
Since you already have replacement grips, there is nothing to lose by trying a little mad-scientist stuff. I would try roughing up the surface with sandpaper (creating a fresher surface) and using something like linseed oil (use for breaking in and keeping baseball mits supple). You could go so far as to use a little pine tar -- I don't think you can get more tack than that.
Yeah, I've thought of using fine-grit sandpaper too! Planned on trying that on some old leather to see how things work.
PK REDONDO TALKS & INTERESTING LINKS REGARDING REDONDO:
Making a Super Redondo:
"Don't play what's there. Play what's not there." -- Miles Davis