ahhh thats because yours is designed to allow you to adjust the chainline!
as your struggling to get the big ring! loosen the none drive cup a couple of turns, then tighten up the drive side to take up the slack and move the chainline more inwards, keep doing it till your problem is solved
when you say the cups bottom out on the bearings! their meant to! as they clamp the bb on place and stop it moveing
when you torque up the shells thats it! job done, no lock nuts needed!
and I did read on one of the write ups that the fr/dh version is available with a wider spindle? so you could be screwed still
Adjustable cups fit 68 and 73mm shells and allows adjustability of the chainline.
Sizes: 113 mm
Shell Compatibility: 68 & 73mm (adjustable)