ok thanks! im thinking i need a new motor cause its 2 seasons old and last night i heard it humm but didnt spin until i moved the throttle a few times and then for the start of the race it just sat there for 5 seconds before it moved. glitch? radio? sensor wire?motor? whatever . seems like a good excuse to get a new motor and see if this problem goes away.
another friend mentioned he didnt really like the HD motor. said it felt flat after it let loose too much power. i may just try a 4000 and see.