I like your problemsI replaced the Geissele SSA trigger in the Colt with a Geissele SSP.
The SSP specs at 3 - 3.75 lb pull weight.
This install averaged (out of 5 pulls) 1 lb 10.6 oz.
Bizarre to be so much lighter than spec.
I double checked the install. Install is good to go.
I tested it 2 more times, both with results very similar to the initial test.
Don't want to breath too heavy near that trigger!
Thoughts on the SSA versus the SSP?