Well, I pretty much don't have any control over the positioning of the lamp. It's in the lamp housing, and it's pretty much stationary. I've got to find a lower wattage bulb though. I was making prints of a still life yesterday, and I was exposing at 5 seconds, with a 3.5 graded filter in place too.
I don't have any ND filters that I can use, so I may see if I can find a 25 watt bulb today, to help me increase my exposure times to I can dodge and burn better, or at least on this one image. I was printing on some Ilford MGIV glossy RC paper.