Help with TL-3W

[URguys]

New to the board and I was hoping you guys could help me out with some problems I'm having with a Haas TL-3W.
Background Info: I started with a new compay about 4-5 months ago to run the CNCs they just purchased. So I'm the first person to play with the machines. Most of my time is spent on the TL-3W. Its never been crashed, so problems shouldn't arise from that angle. Its got a manual toolpost. We've added air & oiler to the tailstock so I can actually move the thing by myself. Use the machine for different things but quite a lot of shafts (anywhere from 0.650-5.0")in mostly 1045 or 4140 and resleeving EndBells.
Question 1: The tailstock is ridiculous inconsistant. Everytime I move the beast and lock it down its in a different position. Even on the same job where I was putting the tailstock in the same spot on the ways, the thing would be out anywhere from 0.007-0.030! Is this just what Haas considers acceptable or do we have a bad tailstock? The design of this tailstock and clamping mech. is terrible but really? Has anybody designed anything to fix this problem or know of a solution?
Question 2: This machine seems to be a chatter-box. Roughing is a problem, I can't take a 0.150 DOC. Some days I'd be lucky to take 0.075 DOC. Figured out some ways to combat chatter: move the toolpost to the 'back' position so I don't have to have the tailstock hang out so much, tightening the tailstock with a 3' pipewrench, driving the center into the part as hard as I can, tightening the steady like a bastard too, been playing with a lot of different insert geometries, 1-rad inserts help but they die pretty quick in 4140. But the machine still like the chatter!
Any help would be appreciated. Thanks in advance.

[WOLOG]

The tailstocks on the TL-1 to 3 is basically worthless. The TL-4 has probably the best design. They will not repeat to save your life so don't ever think it will. As far as chatter, get used to that too. I don't think the bearings are a big as they should be.

[Donkey Hotey]

Yeah, I have to agree: if the TL-3 tailstock is anything like the TL-1, it's one of the few, serious shortcomings in the machine. I hate mine.

[rbest27]

Strange to hear, I adjusted the one I have on the TL-2 and I can run 12" shafts within a few .0001's the entire length. They are adjustable just like a manual tailstock on a manual machine. Take some time to true it up and see what you get.

[URguys]

Thanks for the replies guys.
Well its dissapointing that Haas would think that the tailstock is up to par...
And rbest27, I've been dialing in the tailstock when I need to. I'm actually getting pretty quick at it by now. Its the fact that I'll dial it in-> run a job all day-> push the tailstock back home at the end of the day-> next day push the tailstock back to same position-> and have to dial in the donkey thing again.