Thank you both, Alessandro and Jordan.

Quote Originally Posted by Jordan
Note that you need to use a slide-developing kit to try this anyway, or home-brew a very active and solventy first-developer and a mild-ish bleach-fix formula. Regular B&W reversal processes use bleaches that absolutely destroy slide film (I have tried this too).
Jordan
I won't be able to get an off-the-shelf colour slide developing kit easily (they only sell Foma's B&W reversal kit here) but I can mix one (providing I'll get all the chemicals). Your answer put me on the ground, though, and I'd like to thank you for 'warning' me.

Maybe I should reconsider it and resort to cross-processing instead.