Weapon X said:
Hi, I am finally gonna purchase my first cue, and wanna know if you guys can give me some knowledge on shafts and tips.
1. Whats the difference between a 12mm shaft and a 12.5,12.75, etc..? Does the smaller shaft diameter give you more draw and english??
2. Does a dime sized tip give you more draw then a nickel sized tip?
3. Whick type of moori tip gives you more draw, soft, med, or hard?
1) Size.

Seriously, the first important point here is, it ought to be your game that gives you the draw, not the diameter of the shaft or the tip (although I'll address the tip for your second question. Any "A" player should be able to walk into a bar, pick up the first stick and draw the length of the table. If you start relying on your equipment to give you the action, you'll be letting your game development suffer in proportion. Don't take that wrong; I'd just rather see your game develop regardless of your equipment, rather than because of it.
Having said all that, it's more the shape of the tip than the diameter that affects draw. A dime radius is a dime radius, whether it be on 12mm or 13.
Consider this when choosing shaft diameter: Once you get under 12.75mm or so, managing the movement of the tip becomes problematic without a lot of practice. Yes, I know they use slim shafts across the pond, but they've been doing it for a while.

Unless you have fairly small hands, you'll probably find anything much under 13mm to be pretty small (the majority of bar sticks are 13mm, and most standard production cues are 12.75-13mm).
2) I use a dime radius on my play stick and a quarter radius on my break stick. Now, I'm only a "B" player on my good days, but even tired and drunk I can draw 1 1/2 tables. So, my experience says, "dime radius."
3) The softer, the better, if you don't mind shaping your tip a whole lot.

Me, I use two shafts with tips of differing softness. I use the hard tip only on days when I've practiced poorly before my league matches, so I don't end up overdoing things with the soft tip in my ineptitude.