I'm tiling a small bathroom floor (8'x10') which is not level (1/2 low at the one end). I plan on using the TEC EZ floor level and then putting go-board on top of that. I'll thin-set the go-board in to the subfloor and leveled Tec EZ floor area. . When reading the go-Board for flooring application, they are also stating it should be screwed in every 8 inches. My concern is will the screwing into the Floor lever cause the floor lever to crack and break up over time. I know the level is almost like cement. Thanks in advance.