Seeking advice from anyone who has bright anodised their aluminium window frames (LWB)

The original frames were scratched so we had them dip-stripped of the old anodising & polished. Some minor pitting (oxidation) revealed itself on the “outside” of the frame (surfaces that were exterior). Looked acceptable.
Had them bright anodised. Now the pitting appears accentuated & more widespread on the exterior surfaces. Not the improvement we were looking for. The interior surfaces look perfect.
Could it be that the polishing left residue in the pits & the anodising didn’t coat those areas? I realise the anodising won’t “fill” the pits. Didn’t expect it to.

What now? Go again? Strip … polish deeper to remove the pitting … and reanodise?

Appreciate any input from those who have been here.