So I want to mod my valve to flow better and if I understand this right, the only difference between a stock valve a a "High Flow" valve is the size of the hole?
If this is the case I can just go out to my shop and thow the little thing on my drill press and open it up some...
what you think?

i dont know much about that, but it sounds dangerous.if you dont know excatly what your dpoing, take it to ur local pbstore, and ask them.

You could do that, but you might screw it up, i mean you have to worry about how the cup seal, valve spring, valve pin and all that good stuff fits, if you do anything to screw up how it seals off air, then the valve will be screwed up, i wouldn't do it unless i knew what i was doing or if it was a cheap old marker that i don't care with messing around with *cough*Viewloader Triton*cough*. lol

i agree with dmyers, hold off until with some pros on that

just get a aftermarket valve like a vapor valve with new seals and all that studd anyway of your goin to mod the stock one have it done by someone hwo knows what there doin but i would just get a new one for like $30

but instead of getting a new one, have someone who knows what their doing do it for free.

Well, I happen to be one of those hardcore do it yourelfers... While I would never try to build myself an electric frame, this is something thats deffinatly doable by anyone with some tools and nuts (You know, those things between your legs?)
I found an article on how to mod your valve here: http://www.ottersccustoms.com/valvepin.html
and its as simple as I thought, why pay $15 for a "High Flow" valve when you can just take a drill and open up one of the holes on your stock unit? Because "you might fuck something up" I dont buy it.

This is what an upgrade valve looks like:
As you can see, the only difference between this valve and the stock unit is the fact the the hole in which the air travels through has been completly removed, there is now alot more stress on the O-rings. All I am going to do is open up the top hole to allow more air to travel through the passage.
As far as the pin goes, I am only going to remove material from the middle instead of all over. The way I see it, removing material from the end is useless, but if you remove some from the center you will have a larger area for air to flow.

Well, it was a pretty easy mod... I bought a 32 degree's valve and pin just for comparison, so I will let you all know how they differ in performance.