I'm using a BB-R9100, the chainset uses a 24mm spindle - or I suspect 24.1mm or something :-P I got it in just needed a hammer. When removing these cranks the BB is always destroyed, but I only usually take the cranks out when the BB needs swapping anyway.
ok, just wondered if the problem you were having was caused by the Miche chainset being ISO (?) and the BB being JIS (?), so the different tapers might cause an issue.
Nice colour, that's a Pre Cursa?
Don't Miche do a bottom bracket? Is the taper different? ISO etc.