Same thing happens here all the time. Only time are lanes are right is when the head mechanic is working. Other then that the other guys just do whatever they feel like. Last time i bowled on super dry lanes i used a friends 15 pound plastic ball and played as far right as i could and the ball would come back ended up shooting a 174. Takes practice. I still struggle on some lane conditions that im not use to. But practice makes perfect. And lazy employees make it harder but worth it in the long run.