Is there an easy way to align the front of the camper?

I back under the camper by sight within a few inches of the camper touching the cab. Lower camper to almost touching. If "fine tuning" is needed I tap the jacks near the bottom toward whichever side is needed. Tap one side an inch or so then go to the other side and tap. Surprising how much you can move the camper like this, of course the jack pads need to be on a smooth surface.