I put the Ghost G42/43 Edge connector in my G43. It lightened the overall trigger pull and went a long way toward eliminating the "brick wall followed by sudden overtravel" syndrome that plagues (IMHO) the factory trigger. Now the trigger is more similar to my G19 / NY1 trigger / Glock 4.5# connector setup. I'd consider the Ghost to be a highly worthwhile investment.
I have installed several for people - they seem OK. The one with the trigger stop does ease, somewhat, that common tendency for Glocks to shoot "inside" (left for right handed people and right for left handed people).
They however are not drop in and one needs to fit and try - clearly all Glocks are not identical (I've noticed the above mentioned wide latitude in trigger pulls even among the same model).
how wide: from 4.5 lbs to over 9 lbs. It is not just Glocks, same thing with M&Ps and XDs.
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