The rule of thumb is to put all your electronics in carry-on and put all your "sharps" in checked baggage. I just flew to Seattle with a nice sharp folding knife in checked baggage, highly visible on x-rays. I did not expect nor experience any problems.

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