You must have had a OLD series Winegard. (Which were really bad and moved with the wind.) The new ones that they are making now, totally redone, are outstanding!!! Heavy rain, 40+ winds, not an issue. To this I know what I am speaking. I also own and operate http://www.DBSTalk.com
I left the dome on the coach only in case I know I will be going long distance and may want TV in motion. Other than that, it is not used. No more waiting for the dome to find the sat I need when changing channels. Heck, I can even record 2 shows at the same time on two different sats.
Take a look at the current Winegards, I think just by looking you will see what I mean.