This is definitely all mechanical, so you'll need to pay close attention to exactly what happens when the ball hits the end of the guide at various speeds.

Obviously, adding a washer or two is non-destructive, and after I make sure that the guide is actually dropping the ball dead center in the lane (instead of bouncing it off of the slingshot plastic or the lane separator to the left or the right...), I would try the washer(s) to raise it a bit.

If that doesn't work, on other games I've re-formed the actual wires at the end of the ramp. I didn't bend them... I re-formed them. Bending is something you might do over and over again. Re-forming them is done once. Hehe.

This is one of those tricky mechanical adjustments.

Before starting, make sure your playfield is properly leveled left-to-right, and that your playfield pitch is where you want it. It could be that making your game faster (going from 6.5 degrees of pitch to 7.0 degrees) could solve your problem and add a bit of zing to the game. When you get too much playfield pitch you won't reliably be able to shoot the ramps, so don't go too crazy.

Good luck!

Yeah, you've got a VERY nice Rollergames (you can tell from the picture), and I would also be hesitant to do something permanent to the game.

There is an app for playfield adjustment, and as I remember it, I always set Rollergames to a very high (fast) pitch, like 7.0 degrees or even 7.5. It's a game that benefits from being a little punchy, a little over-fast.

For Rollergames and Mousin' Around I used to be able to get leg levelers with 4" of 3/8-16 thread for the back two legs from Suzo-Happ. Now they don't sell that product anymore, and the 4" leg leveler they DO stock is $23... each! I'm cheap so I'd probably cut a 2 by 4 wood block to set the back legs on to get more playfield pitch.

I hope you come up with a solution to the ball draining unfairly. Stretching a rubber band to block off the outlane completely on the right side doesn't count as a solution... though I've seen it done!

Good luck!