I just cut Pars on my table saw, but have a wedge jig that cuts about 5/16" to nothing in 12" . I flip the block every pass on my wedges.
I suppose a guy could set up a taper jig for cutting tapered lams too, but i've never messed with it myself. I typically set up my saw and rip a 100 -140 lams at a time, then bundle them up in stacks of 20 and keep them on a shelf until i go into lam milling mode. Then i mill 20 at a time of each different taper rate. .001, .0015 , @ .002 then keep them in neet stacks so they don't get oxidized too bad.
With that being said, i still freshly sand all my lams just prior to lay up. This gets rid of any oils or oxidization that effects the surface and i'm good to go for lay up. Teak, Bocote, Bubinga, Cocobolo, and some rosewoods need to be freshly sanded IMO. There are other oily woods i'm sure i missed. I never use acetone on my wood to remove oils. Kirk