Love your work.iv shatered the drive side bearing to the point of i had metal fileings floating arounf in the bb.
Depends on the bottom bracket... some external BB's bearings can be replaced, I know you can replace some of the hollowtech style jobbies with enduro bearings. Google enduro and see what you come up with.yeh if your gunna do it do it properly ay.
hopefully going down to YVC 2moz to see if they have a bearing. can you even buy BB bearings on there own or do you need to buy the whole BB?