I know that people say that you're not supposed to lap titanium valves because the hard coating will wear off. I was thinking though, it will probably cost you $100+ to get the valves ground and a new valve isn't nearly as much. Has anyone tried just buying an extra valve and lapping all of the valve seats with that extra valve? Would that work? If so you could safe quite a few $ on a valve job. I was just wondering if anyone else thought of or tried this? On a side note, I have heard of quit a few people that have not had their seats cut and they got just as many hours on the valves as they did from the first set. Sometimes I wonder if getting the seats cut is really necessary?