I have vague memories that someone suggesed one of the geiselle trigger products to buy, and that the 'springs' for the other products could be substituted in to change the behavior (service versus match, or something along those lines).

Anyone remember the details?

And perhaps more importantly, know who has those items in stock?

 The Geiselle trigger is available in three diff. configurations.  The only diff. between

the three setups are the trigger springs which determine the pull weight.  Minor

adjustments in pull weight are made by bending the trigger spring, but major

adjustments would require swapping the spring for a diff. model.  

The Geissele High Speed trigger has three possible configurations. The hammer spring is the same for all three. According to the note included with High Speeds purchased from Rainier the spring combinations for the configurations are:

Service: Service trigger and disconnector springs
DMR: Service disconnector spring and Match trigger spring
Match: Match trigger and disconnector springs

The pull weight of the first stage is adjusted by bending the legs of the trigger spring either up or down with a pair of pliers. Geissele's documentation does make the statement, "The DMR trigger uses a trigger spring that has a weight in between the Service and Match springs." It's unclear to me exactly how that corresponds to the note from Rainier.

Same hammer springs.  Different trigger springs.

Per Amy Geissele, "The DMR has its own trigger spring......but the match spring legs can be bent down to make the match spring into a DMR.  The match spring is silver
colored.  To make a DMR just bend the one spring leg down to be about even with the one leg already bent down."