I don't have the SR40 but do have an SR9. I got it about 7 months ago..my very first handgun. I probably have close to 1000 rounds through it. I have not had one single failure to feed, fire, or eject. I have fired mostly Federal 115g FMJ at the range and various different hollow points including +p and +p+. Everything has cycled fine. The SR's do have a reversible backstrap. I went to the gun shop intent on buying a Sig P250, but the guy showed me the Ruger. I'm glad he did. Made in America also.
Good luck!

Thanks I looked at the SR40 & SR40c and I think I'll be going with the SR40 my hands like the full size.

Rather than looking at price, you should be looking at recoil. You will enjoy shooting a gun with low recoil that still has the good power level of a .40 S&W. Of the guns you mentioned, the M&P 40 full size is the best for recoil. Go to Genitron.com - The Handgun Information Resource - Home Page and compare a few guns. Just compare the various levels of recoil. Don't worry about what the numbers mean technically. I have found these values good indicators for a variety of guns. If you like shooting a gun, you will become good at it. I have the MP 40 FS and can shoot it pretty well even though its recoil rating from Genitron is 7.810 which is a little high. You might try to find a Ruger P944 with Hogue grips. That has been discontinued by Ruger this year. (I think they just have too many similar guns.) It has a recoil rating of 6.305 in .40 cal. That should be very good. The SR-40 has a recoil of 7.860. The difference is its weight. The P944 is several ounces heavier.

Of course you should always shoot before you buy if possible. Look for a shooting range that rents these guns. Since you are new to pistol shooting, it may be difficult to tell what you like. Whatever you get, shoot it for at least 6 months (1000+ rounds) before trading it off.

I always try to give good advice without any bias except based on what I understand to be true. But I am now disregarding my own advice. I bought the SR40C without getting a recoil rating from Genitron and without first firing it on a range. That is because 1) Genitron has no recoil data on the SR40C (though they have it on the SR40); 2) I can estimate recoil by comparing weight with the MP40C, 3) I have fired the identical SR9C and liked the way it handled. 4) the SR40C was not available to rent at my LGS/Range. I had done a lot of research and when the LGS suddenly came up with a great 2-day sale, I felt I needed to get the gun while I could. The SR40C is not tiny but it is smaller than my SW MP40 FS. So the SR40C will be my CC gun as soon as I learn how to shoot it reasonably well.