in the everlasting "re-production" of my 2.4S, it's now time to see what can be done about the brake calipers. The use of hard-chromed or stainless steel pistons is a discussion in itself, but my question is regarding the caliper; Does anybody have experience with "gold-zinc"-ing the M-calipers? (the front S-calipers are o.k.). Should the calipers be split to do this? (so changing the O-rings)?

thanks
Tom