Firstly tried talking client out of this. Impractical long term I think. Although looks good in the glossy mags! Cut the worktops with mitres. Bit of a nightmare with 55 festool and 40mm worktop! Got there in the end although festool didn't enjoy it. Cuts look ok. Going to fasten to units with oversized holes and washers. How should I glue mitre? I know I'm using silicone for the butt joints but what about these mitres? I have the choice of pva, pu or silicone. Can't see any holding long term when the worktop decides it wants to cup!