I had to re-do the target screw holes on mine to work in the mantis protectors (they were kind of stripped anyway). I pushed the manitis protectors as far back as possible and the stand-up targets as far forward as possible. This gave some more play in the stand-up targets and fixed the issue. They don't register on every glancing blow but they register when you get a hit on them and on many glancing hits.

+1 on making sure the protector isn't sitting at an angle. This was a something I really had to watch out for on the right protector. The other thing I found was that you can get away with a little bending of the Mantis protectors to make sure they're not infringing on the target space.

When I did mine I took out the target screws and removed both targets, then did a dry run where I fit everything in without the screws. It became apparent that I needed to fill the old target holes and drilled new pilot holes to push the targets forward a little. You really need to be carefull when placing everything and making sure your pilot holes are good because there's not a lot of space to work with. If you take your time an plan it out then everything should fit and work.

The other thing I'll point out is that if you have the cliffy on Disaster Drop that might cause a fitting issue. I never bought that Cliffy but I did notice that it wraps around the end of the ramp and I thought that might take up too much real estate in that area. The way the Mantis fits in there, I'm not sure the Cliffy does much to add extra protection anyway.

Yep, that area seems like the worst to get to because the whirlpool ramp that goes over it is attched to the underside of the upper playfield. I imagine you'd have to pull the whole upper playfield to remove that protector.

I appologize. That's bad form on my part to comment when I don't have the protector. I was trying to be helpful and overgeneralized. I pointed out that I didn't have the Cliffy specifically so that people would know I speculating and not speaking from experience. I should not have even speculated.

I did go back and re-examine the area on mine and I HAD to configure that area differently than the way you have it. The first thing I noticed is that the Manitis protectors I have appear to be a little different than what you have pictured there. I actually tried to insall the Mantis the way you have it there but (1) it pushed the Mantis much further into the No Way Out entrance (2) in that position the Mantis wouldn't sit flush with the mounting hole, and (3) most importantly, I had to postition the Mantis so that the lip on the right wrapped around the OUTSIDE of the Disaster Drop protector, otherwise the lip is too long, runs into the ramp plastic, and the pushes the Mantis way out into the middle of the mouting hole, crowding that area even more.

All this being said, looking at that area I think I could probably fit a Cliffy in there, it would just need to be configured so that the right lip on the Mantis went to the outside of the Cliffy. When configured like this the wrap around at the front of the Cliffy would sit behind the Mantis, but I 100% agree that the Cliffy adds more protection to the upper part of the Disaster Drop ramp.

Anyway, I never should have commented without actually trying to install both. Again, that's really poor form on my part.