Won't work on gen 1 sti grips - Atlas Gunworks Geppert X-Line Vario 2011 Trigger

I wish I could have made this work. Nice looking trigger. But with my Gen 1 grips I first had lots of filing and sanding to do just to get the trigger to move inside the grip. I spent a couple days on that. But it turns out that the bow was simply too long, exactly 3/100 inch longer than the trigger I took out. I tried bending it and sanding the slot inside the grip but all to no avail. It was too long to engage the grip safety to stop the rearward motion of the bow. To be fair, I haven't tried this trigger on a Gen 2 grip. But don't buy it if you have a Gen 1 grip!