7:30 to the grip center? If the CG is towards the grip center, that's basically a full-roller layout.
I'm not convinced that "sensitive to oil" and "works well on sport shots" are very compatible. "Smooth", "even-rolling", "controlled" are much more in line with "works well on sport shots". Admittedly, I don't really know many full-rollers and the one I do know gets a very smooth reaction out of his BCB and WZ, both drilled like that.
SH