Quoted from RacerRik:I have already tried adjusting the shooter lane metal guide, adjusting the position of the shooter solenoid, replacing the coil sleeve, replacing the coil plunger, waxing the shooter lane and metal guide, replacing the coil and finally even modifying the shooter coil by taking 50 turns of wire off the damn thing.
Mine used to make it to the skydive hole only about 50% of the time, at best. I went through everything you did... well, except removing windings from the coil. Mine would hit low on the left entrance wall, then ricochet off the right entrance wall and SDTM.
What finally did the trick for me was when I played with the gate on shooter lane. I found the sweet spot on mine was with the top of the gate moved to the left, with the upper mounting screw close to the open edge of the bracket. It must give it just a little deflection or put enough 'english' on the ball that it now makes it in almost every time.
I wasn't seeing a change in force of my launches, so this might not be the solution for you. But it's something you might want to try if you haven't yet.