Welcome to the GP thread again!
Personally I think the GP tool is a far better choice for a couple of reasons as, I have refinished many many devices and atomizers with it.
The quality of the PnB by GP it's intended to be used for the specific purpose of polishing, brushing and refinishing vaping devices from mods to attys with a 510 connection. As well, it is beyond anything one could rig together from HD or anywhere.
I also know our Family here would much rather support Perseas and GP as he supports us incredibly.
Knowing you were sharing which is much appreciated btw and out of pure respect, I'm not sure your post was best placed here in the GP thread. Just sayin.
Hoping you understand

Thanks.