I used to use the method described of increasing the angle to knock off the burr, but I've had better results by sharpening at the same angle but using gradually lighter passes. I usually use something coarse to set the bevel, then sharpen with a DMT fine diamond hone at a fairly acute angle using normal pressure until the bevel is cleanly ground and I'm getting a burr formed. I do 2 or 3 passes per side during this stage, then step it down to one per side using gradually lighter passes, checking the opposing edge frequently to feel for the burr. Once it's gone and the edges are crisply aligned and shaving sharp, then it's ready for the strop.
When I first got my strop I used it as a cure-all for a burred edge, but I've found the you get much sharper edges by getting a clean, well-formed edge then stropping.