Quoted from joekiss:
Unless you are a KISS fan I wouldnt. The Gene head is 100% STDM. You will tweak it and mess with it and it goes right back to STDM. Also the premium and LEs forgot the long magnet that you need to retrieve the ball from the demon lock mechanism that works about 10% of the time-the other 90% the ball gets stuck. I bought it as a KISS collectible. Absolutely awful playing machine. I have plenty of others to play.
Sorry you had this problem, but to attribute it to all of the Kiss machines is ridiculous. I owned a Kiss LE and never had an issue with gene spitting the balls out SDTM. NEVER. I don't believe it was luck either. The reason I sold the game was because at the time the code sucked and had been abandoned.