The house I bowl in converted from a squirt bottle and mop to a lane machine this year. The kicker is it is a really old lane machine. The way I understand it, it applies oil with wicks. Anyway, the lanes are old wood lanes, so they have a lot of friction, although they do have a synthetic overlay for the first 15 feet. They are oiled 10 to 10 for 45 feet. The shot does not taper, although I don't know if the volume is higher in the middle. I don't know the volume of the oil, but it isn't very high at all. Urethane is playable for me. I was even throwing plastic tonight. I have to take my ring finger out of the ball to even hope to hold plastic on a 10 pin. Shots leaked right early take off like a bat out of hell. We have above ground ball returns so I can only play fourth arrow out at the deepest on one lane.