From what you state, I'd also say that you are just using the SI on wrong conditions. I have a Raging Red Fuze, too, and in my THS house (30-32' of light to light oil, 8 dry outside boards) I simply cannot use it. It jumps off for Brooklyn - no chance to get it to the pocket with my normal game (and it has 2L, too).
You can either try to force tha ball down with force (NOT recommendable!), try a higher grit and re-polish it (although I doubt that it will help much), try to paly it with a broken-back wrist to take out any hook or, drastically, re-drill the SI with a weaker drilling, e. g. pin above bridge and the MB right to the thumb. But even then I doubt that the SI will make you happy, since it needs head oil to work.
Just sanding it might make it even worse: the ball will grip more/earlier, and the danger of burning out is IMHO even gretaer than with a polish.
I'd suggest Inverted 1's idea of getting a ball with a weaker surface, medium to high RG, medium flare. A Punisher sounds good, a Rampage could be an option,. too (but maybe already too strong). The pearl reactive Power Grooves are also versatile balls on those conditions you seem to play on - if you are on a budget, these should be considered, too.
Good luck!
--------------------
DizzyFugu --- Reporting from Germany
Team "X": http://homepage.mac.com/timlinked/
"All that we see or seem, is but a dream within a dream..." - Edgar Allen Poe