Got to disagree with ProPole on this one, for doing Georgian work, spray and buff method, microfibre out performs scrim by a long way I think.
But yet again, each to his own, I'd never go back to scrim now...but a note of caution where microfibre is concerned...ony use the good ones! And that has to be the ones from the likes of Ettore and Unger, and the flat weave type at that.
Cheapo's form the likes of B & Q or wilko's just don't compare...they're pants by comparison.
But if you haven't tried a microfibre cloth, then buy one and do so! They are only a fiver each for the large ones, give one a whirl and see what you think...
Ian