I have the 18 as well, the throttle toggle switch is quite long, i bumped mine putting the transmitter down in a chair in the pitts, my gear came up on my old elan, pissed me off, i immediately grabbed my dikes, and cut 1/2 the swich lever off,, probably one of the best mods ever for a radio. I have beeen flying with it like that for a while, no issue activating my gear, and no more bumping that long sumbtch just my 2 cents.