I have a Carefree electric with no adjustments. It's on a 5'er so it has enough pitch to drain and also has gas shocks that allow it to dump if water is trapped.
I have used it extensively since new in 2011 and never had any problems with it. Just clean the guides and lube with silicone spray. It is often strapped down and also has a screen attachment that helps hold it in place. Just replaced the fabric a few years back.
If not secured, we bring it in half way at night or all the way in if we are gone out. It has survived some high winds many times.
Maybe we are just lucky!
2011- 351RLTS Eagle, MorRyde suspension/pin box,
2017- F350 6.7 PSD Lariat FX4,SRW, SB,CC
Hughes PWD SP-50A, TST TPMS
Gator roll-up bed cover
B&W Turnover ball, Companion Std hitch
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