Did this bonnet today for Mautomotive designs, while i probably should've started with 1200 or 1500, i went with 3M 2000 because i'd run out of heavier paper and was too lazy to go down to the shop and get some, it was for a friend so i was aloud too be lazy lol.
Anyway after an hour with the 2000, i went back over the bonnet with a Sia 2000 velvet disk on the RO, then i use a green edge wool pad with presta cutting creme, menzerna 3.01 and a white 6" GPI pad a couple of times, and then finished off with Menzerna 85rd and a black GPI pad.
Total time was around 3 hrs.
Before
After sanding
After 3.01
After 85rd