Steve,
I've been extremely happy with my cover from Bruce's. I went with it because of the fit ad the lining material, which was recommended by a number of people who had seen other covers scratch the plexiglass when the wind came up and they moved on the canopy. I figured that for what I put into the canopy, it was worth it to buy a great cover! Yes, t is heavier than the lightweight models, but it definitely stays put in a wind. Folded and in it's bag, it takes up half of the little "L"-shaped part of the forward baggage compartment. Mine lives there with some tools and spare oil when i travel.
Of course, my plane lives in a nice hangar, and is frequently hangared when traveling as well. I use th cover when the plane is going to be on a ramp all day (to keep out the sun and prying eyes), or for overnights when hangars aren't available. But when I need to use it, I want it to stay put, and not do any damage, and the Bruce's cover does both o those things very well.
Paul