I've never ADDED them on purpose, it's a bit of a throwback to 72MHZ days of R/C when radio interference was real.
There is a near zero chance of the lack of capacitors affecting the Clark board functions, it's a radio noise thing.
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Tiger I - Panzer II - Panzer III - Panzer IV - Chi Nu Kai - Panther G - KV-1b 756(r)
M4A3(76) Sherman - T-34/85 - M3 Grant - SECRET PROJECT