To get the correct setting of solution being emitted from your gun, have a rolled up couch roll and spray down the length of it.... the line should be even all the way down and the paper should go no more than slightly puckered. If you look under the sheet below where you have sprayed, the sheet below should not be damped at all. If you are spraying too wet, the top sheet will be too damp and the solution would have soaked through to the sheet below on the rolled up roll.
Solution: If spraying too wet ie the couch roll is too damp, turn down your solution adjustment screw at the back of the gun and re-try. If the solution is too dry, turn up the adjustment screw and re-try. Only adjust in small amounts so that you can get a feel for the different adjustments. On most guns the screw would be opened up a full half a turn, give or take 5 mins either side. Mark your screw with an arrow with a permanent marker when fully closed so you can see at a glance what setting you have it at.
Once you have the correct consitency, you now need to practice control and routine. I would suggest sticking up rolls of couch roll for this in your spray area and practice spraying in lenghts with your gun until you find you have a nice 4" - 5" wide spray, at a light mist so that the paper does not get saturated. Your ideal distance from the body is about 4 - 6", this needs to be even and consistent. If you are too far away, you get more overspray, too close and you get the solution possibly too wet on the skin. To avoid 'splodges' learn how to move the gun as you spray... so.. dont hold the gun still and start spraying... or you will splodge... on each pass down the body ..... as you start it you should be moving at the same time as spraying.... this avoids splodges and you can practice this on your taped up roll.
Good luck.. it does get easier with a little practice.
HTH