Buy! I was waiting for 4.5 as well to add more shares but after seeing the hammer candlestick at the end today which is on the same day they announce a CC for next week, I picked up my next allotment near the close at 4.9... I think think is the end of the pullback. IMO it will trend up a little or sideways before up but I dont think it will hit 4.5.
I would say buying more now cant hurt... even if the stock goes to 4.50... when the stock is double digits in 6 months its not gonna matter if you bought at 4.70 or 4.50 and I think we are near the bottom here