Oncidium repot question. Lowers vs shoot

[bil]

OK, this oncidium finished flowering so I cut off the stem, whereupon it threw two new small flower spikes.

Then, it decided to throw the shoot for the next pseudobulb.

Originally I was going to repot it after the flower spike, but before the roots started for the new shoot.

Should I repot it now, while the flower buds are still closed or wait until the roots start from the new shoot?