My empeg has quite a few airmiles under its case and i have had no problem, the battery might raise a few eyebrows but do take a 120/220 power supply so you can boot it infront of them.

Also i carry a allen key incase someone gets too noisy so i can open it insted of them hacksawing it open, but it has never even been looked at.
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P.Allison fixer of big engines Mk2+Mk2a signed by God / Hacked by the Lord Aberdeen Scotland