My "shop out" guy, who's been doing it for 25 plus years, just put one one on his personal T2, and recommended that I purchase and have him install one on my IJTPA, which I did. Haven't had a chance to play it yet, but it looks incredibly smooth. They fit nicely, and give you an instantly "new" smooth playfield texture. Won't fix visual problems, of course. Love that it can be removed at future point if absolutely necessary, with no damage to the playfield. The German dude who makes and sells these did right by me... when the first one arrived with a small dent, he first suggested a way to fix it, and then when that didn't quite work, he immediately shipped me out a replacement. So, I'm very satisfied.

I have done two. I did a TOTAN and a Hobbit. Does smooth things out and it would solve your problem. They get tricky to install correctly when you have things rising out of the playfield ( drop targets. Trap doors, ect...) those items have to be adjusted to meet the protector otherwise you create a ball walk/stick problem. Otherwise it worth the effort in my book.

I have done two EMs - Atlantis and Abra Ca Dabra. One thing you notice immediately is the ball rolls perfectly smooth and quiet as it glides across the playfield. Most older games you can hear and feel the ball rolling. So to answer your question, the protector will certainly smooth out the way the ball rolls. It also completely smooths out cupped inserts.

I have 3 of them on different games. I like them. Easily removed if desired. Poor mans clearcoat.