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.
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. As well it is beyond anything one could rig together from Home Depot our themselves.
As well as every one here would much rather support Perseas and GP as he supports us big time.
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.