nice work I use a combination of stuff, but mainly a hand planer sand paper, sometimes a sanding belt to contour stuff ...
Ahh yes,HCL,a beltsander[stand up] can do wonderful things,you can do everything on them,almost.
take a look in the "show your plugs forum"some cool stuff there.
cheers
Takes a Big Man to sling Big Wood,,,,boys sling plastic,,,,,,,