Yeah, I should have said this last night:
Do you plan on leaving the laser on the gun as a relatively permanent accessory? If *no*, consider one of those el-cheapo lasersights like I described in my post (the ones that clip on the triggerguard). I will do very nicely for the work you describe, and probably costs a TON less then lasergrips. plus, you can transfer them to any gun in your arsenal to practice trigger control.
however, if you DO plan on keeping it on the gun, go with the lasergrips or some other permanently attached laser. The removable trigger guard mounted ones are too easy to bump and ruin the alignment.
Mike
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"A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects." -Robert Heinlein