IMHO........here are my tips for the LEE M1000 (it's like the Pro1000):
1. Mount your press on a sturdy bench.
2. Keep your press clean....free of spilled powder or primer residue....not to mention grit.
3. Lube the moving parts.
4. Now, is also a good time to tighten up loose nuts.
5. Keep the primer tray loaded up w/ primers........don't let the feed trough get half way empty..........gravity helps to keep the primers moving downhill. Re-fill the tray with only 50 primers at a time. The primer will seat.....as the handle is going up.....shell plate coming down.......you'll have to get to learn, "the feel of it."
6. Keep powder in the hopper..........make sure the powder isn't clumped and "bridging."
7. Keep brass in the magazine tubes........and don’t forget to turn to the next tube, when needed.
8. Bullets go on....one at a time.....have a good supply close by.
9. Use full, smooth and complete strokes. Unless there is a "good reason to".......don't go partial way and change directions......it'll ^%$& things up.
10. If and when you do ^%$& thing up.......remove the problem shells, make sure to check the indexing and primer feed area for a jammed primer. Clean off any powder spills or primer dust. Set the problem shells to the side........work on them "later." Before continuing with production.....try the press w/o shells to check the indexing.
11. After 1000s of rounds.........if you're having indexing problems..........you may need to change out those plastic cams.........change both of them, rather than one at a time.
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BTW, I own (3) three LEE M1000s, one for each caliber: 9mm, .38 Special/.357 mag., and .45 ACP. I find it easier to use for pistol ammo, then my Dillon. This way, all I have to do is change the press on the bench, instead of messing with powder adjustments, primer feeds, dies, shell plates, etc.
Your mileage will vary.
Aloha, Mark
PS.........Safety glasses.......and avoid distractions.
http://www.geocities.com/leereloading/leepro1000.htm