I've only ever done one, and then it was with some trepidation. In the end it was a piece of cake and the bolts came out very easily. No heat needed.
I'm sure I got my seal kits from Moto Rapido, if not it was Powerhouse UK.
I can't see the point of Titanium pistons personally as they don't need to be very strong, and there's not much weight to be saved as the originals are aluminium anyway.
However they should be alright as long as the seals fit, tolerances are fairly large on brake pistons and I have no problems with Far Eastern engineering.
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