I just mounted a 19 lb EA iAMP 800 into a SKB Roto X Rack. I like to travel light, and I don't need an expensive heavy-duty case, which would weigh a lot more. This 2-space rack only has front rails. Even with the light weight of the iAMP, it seems to me that those aluminum front rails may get stressed over time when your lugging the rack around at odd angles and what not. Does anyone have recommendations on placing some kind of support for the weight at the rear? Foam, etc. I'm not interested in installing rear rails or brackets, etc. just looking for an easy quick fix. Naturally, I'll need to make sure that what ever I do, nothing should block the amp's ventilation grills/vents.