>>I can already envision the response of "highly not recommended"

You might be surprised. You're just as likely to have someone go out to the factory floor with a tape measure and see where Ian drilled his M80s.

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8