If you search the Forum, you will find that Intensity covers have been commented on before. I suppose one could leave spars underneath the cover; not sure about that though. You can call the company to get a better answer.
I have the intensity cover and store my spars under it all the time. So far it's served me great. There's not really much that I can say about besides it works.
I have the intensity cover and store my spars under it all the time. So far it's served me great. There's not really much that I can say about besides it works.