This just my opinion.
Nooooooooooooooooooooooooooooo
I use ThreeBond 1104 Liquid Gasket Grey.
It's actually the same gizz as used by Honda, Yam, Suzi and Kawasaki in the factory for engine assembly.
Yamaha tried to sell me their version of is at £75 a tube
The Honda gizz was about the same price but Kwak and Suzi branded stuff is only £12 a pop and there's enough to do 30 / 40 engines in a tube.
It's a semi-elastic bonding gel and is easy to use. It's got special temperature tollerant qualities and - this might make you laugh - Yamaha UK told me that their engines needed this stuff to allow heat transfer across the casing joints to be effective.
If you want some - order Suzuki part number TB1104
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These aren't the droids you're looking for.