Due to the manufacturing process the hoops go through, it's very unlikely that the fit issue was caused by variance on our end (the head wouldn't have been compatible with certain machinery if the hoop was out of spec). Still, I'm definitely willing to send a replacement in the off chance that there was an issue. Please contact me directly at Ben.firstname.lastname@example.org
As I've been deeply involved with Level 360 bass drum head development, I toke measurements of a wide variety of drums in different make/model/year and noticed some pretty wide differences in both shell size and counterhoop size. We'll be doing our best to accommodate the widest range possible (just as we did with Level 360 tom and snare heads) but we're also aware that certain manufacturers are making changes to their specs as certain fit issues have surfaced.