"went to the Range today, Oh, Boy..."
And, went with usual suspects -- my sister and brother-in law, to fire three pistols: My AP&W modified R9s, my brother-in-laws stock SIGP250 compact in 9mm ( only a Houge slip-on grip added), and my modified SIG P226, hard-chromed, matte finish, sighting and trigger work done by Bob Cogan at AP&W. Bob and crew also hard chrome-plated the R9S, milled the front and rear si.ghts and made them more colorful, and ported the gun.
The R9s:
[imghttp://1.bp.blogspot.com/_LCe3yw4OdMw/S9c55vBpKEI/AAAAAAAAAfk/8Cz-sVBPP2Y/s1600/R9s_4_sm.jpg[/img]
24 rounds between 3 people, of 115 Gr. Speer Gold Dots.
Not one misfunction/misfeed.
Porting seems to make the gun aboiut 15-20% louder (I find this cool) and reduce recoil and musslze flip by an amount I cound only guess at: may 10-15 % -- it's pretty subjective.
One thing I see to see because of the 'robust' or 'snappy' recoil of this light, full-power 9mm weapon is that to me it handles and shoots much better one-handed (a more lilely defense scenario anyway) than attempting to come up with a good two handred grip on such a small pistol. In addition, with the one-handed grip, the dominant-eye to hand coordination seems to be faster; in addition the preceived recoil semed to me be better handled one-handed, since a strong firing line/angle can easily be establshed from the (very firm) shooter's grip, and back in a straight line through the straight arm and into the shoulder. This spreads the recoil energy through the largest body mass; the two handed grip no matter how I work it seems a compromise with no great benefits. WIth the arms straightened out ahead of you, the direct-line force of the recoil is directed through two hands and arms -- both at a slight 'V' angle to the vector force of the recoil. This would undoubtedly result in greater impulse forces whose vectors would tend to place more stress on the thumbs, wrists, etc. area of the shooter: largely because they cannot maintain a straight and rigid line from the pistol's vectored recoil thorugh the bones and muscles of the single arm, coupled back to the body's center of mass.
Anyway, the little SOB shot terrifically -- for me, out of two magazines fired, would up with ALL shots in the black from 25 feet, and three downright, absolutely perfect, center bullseyes all though the same hole, shooting one handed, dominant hand and eye.
Damn, that was fun
Problems encountered: after one round chambered, no FFW or any other difficulties. Because off the needed stiff and strenghth of the slide pull, I found I had to chanber the first round for my sister to try they gun, as she simply did not have the arm/hand strength necessary to do this 'hard quick pull and snap process ' properly, all the time. So add another vote for always keeping a round in the chamber when carrying.
Also, shot a number of mags thru the P226, also custom-finished, trigger work done, and ported by Bob Cogan at AP&W.

What a sweet gun. The trigger pull is just perfect at about 3.5 pounds, the porting makes the gun a little louder, but singificantly decreses the muzzle flip and thus the time to get the front sight back onto target. Even the less-experienced shooters who tried this were quite suprised that their scores and patterns significantly improved. At 25 feet rapid-fire, all 16 rounds in the black with no flyers. D**n !
I love these guns, and I am truly greateful to Bob Cogan -- and Jason, his office manager -- for taking such could care of me and my property, and sometimes wasting an hour or so just chatting and arguing about arcane technical things...
Soon, I am going to buy an STI 1911 from him, and have a little work done on it....
And then life shall be complere.
So, if any of you guys are ever aroung Stillwater, MN (right on the border with that Cheesehead State) give me a call -- lunch and.or shooting: sounds OK to me

Bill Krog
6351 St.Croix Tr. N. #128
Oak Park Heights, MN 55082 (Stillwater)
651-342-0669
And if any of you just happened to have a white Lamborghini Gallardo Spyder Convertible, all the better

Of couse, best to get this out here before the ice comes in again...
ALL the best to all of you