There have been several reports of scams running in the For Sale sections of this forum. Just like any internet purchase, please use caution and be sure to verify identies. Phone calls are strongly recommended along with using payment methods offering protection for shipped items. Never use VENMO or Pay Pal Friends and Family for shipped goods.
I didn't order a main cover yet, but I did get a boom tent for shade and that is very nice quality.
They have a measurement form for the main covers. Mine doesn't stay on long enough after racing t o race as the boat is dry sailed.