Bought a 12mil clear diamond solar cover (the bubbles are diamond shaped as opposed to round). Also bought a Rocky's Easy Roller (used) bought just noticed in a pool catalog that warranties on both the cover and reels are voided with this type of cover. Since I haven't actually tried to roll it up yet (need the attachment kit), can anyone tell me if this actually works? I have a 18x36 in-ground. If it won't work, does anyone suggest cutting the cover in half or thirds to make it easier to manage? Thanks!