Sorry to hear that
It will be, most likely your upmast connection to the antenna in case you have a connector up there.
But very good you flew your spi
. When I singlehand it, I just point my boat offwind, engage my autopilot and adjust engine for a 1-2 knots of apparent wind (well, suposing its not blowing that hard, what I wouldn't fly it anyway). Once its done, just quit the engine and the thing grows !! Agree with you, what a blast .....