Keep in mind that clipping springs will lower the preload force that holds the slide closed in battery, and increase the spring rate when the slide is fully drawn back. This can have two undesirable effects:
1. The slide will move out of battery more easily and more quickly with these coils removed, potentially exposing the sides of the case before pressures have dropped to a safe level, increasing the risk of blowing out the side of the case. This is dangerous.
2. The slide will be require more force to draw all the way back, and it will be moving more slowly at the end of its travel. If too many coils are clipped off, this can make for difficulties fully ejecting an empty case, and make for less certainty in stripping the top round off the top of the magazine, resulting in more misfeeds. Also, although there is more force as the slide begins to run home, there is less force as it finishes its cycle, leaving an increased chance that the pistol won't return fully to battery. If it doesn't return fully to battery, some pistols won't allow their triggers to work (and rightly so).
Of course, you may be looking to do exactly this....
You should really think about just getting a new spring, rather than trimming coils off an existing spring. Folks debate the merits of lighter and heavier springs all the time on this forum. I like the OEM spring, but then again I shoot standard pressure ammo exclusively. I wouldn't recommend going any lighter than the OEM spring with this pistol.
Scott
