So last night I purchased a lovely new Sig Sauer P238 HDW for my warm weather concealed carry piece. Of course, Sig being Sig, it only comes with the one magazine. New Sig mags range from $37-$45 a copy. Several places have aftermarket mags from ProMag for $15 or so. My question is- are the cheap mags worth it or are they crap? I'll always use the factory mag when carrying just for piece of mind that it will always cycle reliably, but if I can get by with some cheaper mags for the range that would be great- but only if they work- I don't want to have to fight the pistol to get it to cycle just to save a few bones. What say you all?