Hey! Im new to atv and banshee too....your answer is here for sure....ive read the answer to your questions a bunch of times...each time the recommendations will vary in degree, but everybody always mentions the same items, as there are only so many items right?.....The mission is to figure in what ORDER you should proceed...
Most times, the wiser of fellas here pretty much always mention compression/leak test after the way obvious stuff is done...verifying your foundation is solid...
As far as take offs go...Im 420lb, i leave 2 deep farm ditches behind me when i leave in 1st, and thats leaning over the handle bars lol