I don't think one can ever define 'too slow' in this sense. Theoretically, a whole bunch of miners could jump on even with the high difficulty because it is that profitable with certain cpus, gpus (especially consdering one could easily pump the price up right now), and the difficulty wouldn't have to adjust that much. I think this NFactor has really beaten down the 1gb and 2gb gpu cards.

BTW well done! YACoin has now surpassed bitcoin in marketcap by more than 10 fold! lol wth...