You would have to stretch the spring to lesson the tension but this will also effect blade deployment.
A better option would be to find or make a longer "L" clips (the piece the springs attach to) or find a slightly longer spring.
I have a pretty worn 2 year old Ultratech spring (1-3/4"long)...
I am Woody from Woody's Knuckles.
I see many familiar names and previous customers here.
It looks like it is going to be a nice forum here. I am looking forward to meeting some new people and utilizing some of the many resources hear.