hi guys, i just had new k66 cushions and felt on rails put on installed the rails myself on my amf playmaster table,i snugged the rail bolts only and evrything seems to have lined up well but i dont noticed a huge diffrence as far as the bounce it plays well but wen u bank hard u hear a thump is that what i should expect ,or maybe the cushion height is off? or rail bolts not tight enough? or should i have gotten beetr rubber? k66 $50 artemis$250 inch and 3/8 is the cushion from playing surface and its and 8 ft table