Progessive loading units are okay.
But don't expect really any super accuracy with the powder measuring.
I mean are you really going to be reloading a lot of ammo--hundreds, or thousands of rounds?
When I measure my powder, I always used a digital scale.
I've got a Lyman DPS 1200 DPS III (see the photo attached).
And instead of a progressive press, I used a rotating head press where I can keep my dies set-up long-term.
I have a Lyman press similar to the T-Mag II
http://www.lymanproducts.com/lyman/presses-and-kits/Lyc_RPK_Tmag.php
Take a setup like this, and combine it with any kind of digital scale, and you will have a winner.
You won't need two setups.
The key to excellent reloading is consistancy.
a. super accurate powder measurement.
b. consistant, heavy duty press for accurate forming.
c. constant eye to details.
The progressive presses are great I believe if you shoot a lot of pistol rounds for practice and want a fast, economical way of reloading.
But for better than factory ammo--It just doesn't cut it for me.
What you are essentially getting with a progressive is an mini-factory, with all the draw backs and inaccuracies.
Now some guys swear by these progressives.
And more power to them.
But if you put together a set-up like I recommend you will get more performance and a lot more satisfaction out of your ammo.
I load my ammo in lots of 50 or 100 with painstaking care.
I recommed you do the same.
Also you will get more boom for your bucks.
T