Hey guys, Does anyone know whether or not a Blackspire Stinger (BB mount) would be compatible with a Shimano slx hollowtech BB. (the one that comes with the slx double with bash)?

Yes

Yep all good just remove one spacer from the drive side bb cup

Yes. As Orangeboy said – I an SLX double with Stinger and setting up was easy peasy.

It will fit with the BB, but if you have a 73mm bottom bracket shell AND you want to run a granny ring you’ll probably run into trouble like so:

Managed to get it going with a grinder reshaping the stingers back plate a bit and another thin BB spacer (making it wider than ideal), but sill got a little chainrub in lower gears