Also let me clarify my previous 7lb comment to be the only mode of fire. Most DA/SA guns start around 10lbs pull but after that they're SA and I don't know of any over 7lbs in SA mode of fire.
So, in a competition where at the Pro level... every tenth of a second, every round, and every bit of accuracy matters... where there are frequently tight shots at 25 yards and beyond on the draw... Why haven't they all dumped their DA/SA guns for something with a lighter pull? The 10+ lbs on the first trigger press doesn't matter because they have mastered the fundamentals.
Trust me, you're turning a software issue into a hardware issue.
The fundamentals are the same. Keep the front sight still while pulling the trigger to the rear. 8lbs vs 6lbs is not that detrimental.
While I do agree the fundamentals are the same I'm stating that the Glock platform was never designed to have over 5.5# of pull and the models that do are for regulatory compliance only.
Which is an entirely different conversation.
Heavy, if you want to wring more accuracy out of your shooting... dry fire the bejesus out of your gun. A very helpful guide is Stoeger's book:
http://www.amazon.com/Practical-Pistol-Fundamental-Techniques-Competition/dp/1482009978/ref=sr_1_2?s=books&ie=UTF8&qid=1367695396&sr=1-2. There are also a few other quality dry fire guides written by top level shooters.
If you're looking for a hardware change, a full, or even mid, size gun would be more beneficial than swapping trigger configurations. Attributes such as a longer sight radius make your learning a lot easier.
There's a lot of good info on handgun-specific boards, such as:
http://pistol-forum.com/forum.php
and
http://www.brianenos.com/forums/index.php?act=idx