This is taking clueless casino executives to a whole new level. I guess if you are limited by # of machines it could make sense. 55% !!
There are some illegal slots in a bar around here. I decided to play one. Deposited $20 x 2. The first time I got $20 in freeplay and 2nd time I got like $16 back after going bust. One game offered a severely rigged double up feature. Anyway, not counting freeplay I'm guessing the slot has a similar RTP.