I have been a Sig fan for years and have always respected Glocks. I actually sold a Glock 26 to buy a Sig 220. I used the Sig through my police academy and have been carrying if on duty sinced graduating.
I purchased a Glock 26 for off duty and back-up and I shot better with it the day I bought it than I did with my full size Sig 220 after I had been shooting it through the academy. So it go me thinking and I truely felt the Sig trigger was the reason I wasn't shooting was well as I did with the Glock. Well then I picked up a Glock 21 SF at a local gun store and I fell in love. I was talking with an officer from my class that I ran into at the jail and mentioned I wanted to sell my Sig 220. Another officer handed me his card and told me to email him with prices for everything I had for it. I priced everything pretty cheap but I felt it was fair enough. His response was "I'll take everything". Pretty much the easiest gun sale I have every experienced.
So I woke up after getting off the night shift and was able to track down the last Glock 21 SF they had and they put it aside for me.
Yesterday I went shooting with a buddy and took the 21 SF. We were short on time and were supposed to be at a birthday party, but we knew the ladies were gonna be late so we made a rational decision to stay and shoot.
Finally here is the range review. I was a little nervous that it would still be too big for my hands, but it fits like a glove. And they guy at the gun counter said it would have more felt recoil than my Sig 220 because it weights less. I figured it might feel softer because the wider grip will disperse the recoil across my palm more, plus the bore axis is lower. Well I was right. The recoil feels noticably softer. I was able to get back on target quicker. I'll be able to maintain my form better during extended range sessions due to reduced weight and reduced felt recoil. This gun has the typical Glock trigger, which I am learning to love. As expected reliability was 100%. I also love the Ambi Mag release. I can use my middle finger to release the mag and I don't have to shift my grip as much as I do with the Sig.
Also I am shooting this gun better the first time I've shot it than I was shooting my Sig after years of range time. Some other added advantages from a LEO standpoint is the gun will weight a little less and I'll got from carrying 4 spare mags on my belt to 2 spares. So I'll have less weight on my duty belt which means I can run faster and longer. Plus at the end of the day I'll feel less fatigued which will slowly add up. There may be a minute benifit in this area, but I'll take any benifit I can get. My sleep schedule is so jacked up that any help I can get to make me feel more energetic is worth its weight in gold to me. Needless to say I'm really impressed with this gun.