Kayak storage question

I have read the tech tips on storing the Mirage Kayaks.
I see where it is strongly recommended not to store them on their bottom hulls for a long period of time; especially winter storage.
However, when using the Outbacks in the summer, I keep them in my garage on the Hobie plug in wheel carts. I wheel them into the lake (about 50 feet of lawn) about 3 times a week.
So, is keeping them in the wheel carts between uses during the summer not a good idea??

Thanks,
RickM46

They may warp by storing them on the kart. Look at a thread further down the page. The gent stored his on the kart and it is warped.