Wet Sanding with Dura-block or paint stick?

This pertains to final sanding 2k after blocking. However you get here is debate-able and everyone has their own process. I have always final sanded 2k primer surfacer using 500-600 grit wet sheets wrapped around a paint stick. I use a bucket of water, spray bottle, dawn method. It can be rough on the hands and fingers. I do have dura-blocks PSA type and I guess I can wrap the paper around them.

Whats your last sanding step preference?

Are there any PSA wet sand paper that will hold on the block ?

I was wondering if I can use 3m or like PSA or will it just come off.

I'm ordering sand paper this week. Thanks Craig