Focus more on training and less on the gun and you can do significantly more to improve the level of precision at a given speed. I am not against "enhanced" or "improved" guns by any stretch. I regularly carry and shoot a Triarc 2011 and an Agency M&P. That said, it is not the guns that make me more accurate in is training with them. There are characteristics of some guns that lend themselves to better results, but if you dont spend quality time with them you wont be able to utilize the potential. If the purchase of a new or different gun takes away from training you otherwise would do then skip the gun and take the training.
When training I always try to push the speed of my shooting while maintaining accuracy. This is different for varied distances and target sets. It isnt hard to go full Ricky Bobby (I Just wanna go fast!!!) and lose accuracy. Constantly working to push that line in training is the key. Working draw stroke, first shot, recoil management fundamentals all will help with significant results.
Chris
On a side note Pincus is much easier to take and expresses concepts much better in video. I am not a fan of his teaching methods in person and would never take another class with him. If anyone gets a chance try a Sage Dynamics (Aaron Cowan) defensive pistol or carbine class. Aaron has an excellent teaching style that will help you see improvements, but more importantly will leave you with a good base and understanding to allow you to self diagnose and correct or improve your results when you are training individually (important!!!).
