Do you get a dog leg at the end of your dowels Rick? I do and the dowels I received from Cue Components had the same..bend.
Randy,
It depends on the thickness. On a 1.5 cutter set up you can go .125 over or under.
If you have a perfect 1.5 x 1.5 it should come out perfectly round end to end. If the dimension are of a little you can get a flat spot.
You have to put centers on and true them anyway so no big deal.
Rick
This is what I mean although these are not shafts I run shafts the same way.
https://www.youtube.com/watch?v=AigIie8E-0w