I find the grip length on my P239 (40S&W) just a little short for quick one-handed shots. Does anyone know of a grip extender designed for the small Sig? Alternatively, how about an 8 shot (or larger) single stack magazine that fits the Sig and I'll just manufacture and attach a grip extender to the magazine itself? An extra 3/8" is all I need to provide a good perch for my pinky.