Opinions on .9 degree steppers

I just picked up (6)Brand new, 2 phase, Vexta Nema 23, 118 oz, .9
degree steppers (400 steps per rev - #PH268M-E1.5). They seem like
some nice motors. Anyone have any comments about their use compared to
the 1.8's ?

I am assuming they will be very smooth running compared to 1.8's.....
Probably even quieter.

I can't say I ever came across .9's in the surplus market, usually
they are coarser step units. Does any one know if there are finer step
motors than .9 out there?

If anyone wants some of these 8 wire beauties, American Science and
Surplus has them in their latest flyer for $15.00 ea. I picked mine up
in the Milwaukee Store for less than that.

Chris L
http://www.data-cut.com/