Any suggestions on getting a nice brushed Ti finish?

Been using my dynafile with a .5 x 18 in nonwoven belt and it works fine but the 3m belts die pretty quick (they also start to add pockmarks if they get too dirty) and they also aren't cheap. I'm curious what the most efficient way to get a brushed Ti finish is, or what the bigger manufacturers are doing, considering getting a 2x72 belt for my KMG grinder to get the bigger surfaces..

Anyone care to share their method?

thanks!

Cole
Weis MFG