Depends on what you mean by improve. Different strokes for different folks. I prefer an unmarked connector with a reduced power safety plunger spring. Nice defined "wall" and crisp break.

 

I heard the Dot Connector is an improvement over the unmarked one, thus my question.

 

It depends on your definition of improvement, it will make the pull lighter/smoother, but the wall/break becomes softer/mushy.

The "dot" connector is +6* (compared to the standard connector).
The "-" connector is +10* (compared to the standard connector).

In a pre Gen 4, the "dot" connector roughly splits the difference between the standard connector and the "-" connector, with a slight bias towards the "-".

In a pre Gen 4, the "dot" connector lightens the trigger pull, but makes the "wall" less firm (just like the "-" does, but not quite as severe).

I tried it, and just like the "-", I thought I liked it at first, but eventually went back to the standard connector.

In a Gen 4 the "." is perfect.

 

I have dot connectors in Two Gen2 G19’s. I tried it out of curiosity one day. I liked how it felt so I put one in another one.

 

I put a dot connector in the G3/17. I really like it and I have kept it there for years.

 

In my Gen 3 Glocks I run a - connector with a NY1 spring. Has about the same weight trigger pull as stock, but a much firmer reset. I like the feel better and its a pretty cheap mod. And supposedly the NY1 spring is less likely to fail.

 

The main effect of installing the DOT connector in place of the UNMARKED connector is a reduction of peak trigger pull force of about 0.5-lbf.

Glock calls the DOT connector the Gen4 5.5-lbf connector. When Gen4 models first appeared in 2010 they used the UNMARKED connector. Those had about a 6.0-lbf pull because the Gen4 trigger mechanism housing and frame position the connector very slightly more CCW with respect to the trigger bar. That increases the peak pull from any specific connector by about 0.5-lbf. The DOT connector was produced by 2011 to restore Glock's standard 5.5-lbf pull in Gen4 pistols. It produces a 5.0-lbf pull in pre-Gen4 pistols.

I like a 5.0-lbf trigger pull. I use the MINUS connector in my Gen4 Glocks and the DOT connector in my pre-Gen4 Glocks. That produces the same 5.0-lbf pull in each.

 

Exactly what Mike-M said. When I had the Gen3 19 I put the DOT connector and it reduced the trigger pull. When I switched to the Gen4 19 I installed the MINUS connector but, for my 19 specifically, the Gen4 TB and the MINUS connector was not as smooth or as crisp as the Gen3 trigger. I installed a Gen3 TB and the MINUS connector in my Gen4 19 which made the trigger smoother and crisper.

 

I just tried this in a Gen3 19 and YES the dot connector was noticeably better than the non marked one. Still a very distinct wall and crisp break. The dot connector is the best connector IMO other than the Double Diamond

 

Yes, as stated above it will reduce the trigger pull weight by approximately 8oz.

 

I installed a dot in my Gen 3 and then immediately yanked it out. Hated the added creep. The unmarked provided a much cleaner break in my pistol.

 

Put a dot connecter in my gen3 19 I like it alot.

 

Old thread but still a good question. I approach my G20 Gen3 as being a COMBAT weapon. Tried lots of connectors and settled on the minus- as it provides the smoothest light trigger I can pull kind of like a revolver with a trigger job. If I want something target with a wall, I just grab the Ruger SR1911 in 10mm with a perfect 2 3/4# trigger. The Ruger is always the choice for anything requiring repeatable accuracy but the Glock wins for anything Combat related.

 

The Gen 5 uses the dot connector as standard.

Yes, it does improve slightly the trigger pull over the basic unmarked connector.