I loved my Mac Cat DLX, but I found it difficult to get adequate end coverage with the BMBH. The JRB 11x10 rectangle tarp worked much better, though it is about 6 oz heavier if memory serves.
I can even close one end against the wind if I use Grip Clips to hiking poles(or trees/branches) at the spreader locations. I don't think I could do that with the Mac Cat DLX.
But another trick for the tarp ends is a smaller spreader bar on the foot end.