transbrake solenoid spring

[J&S Racing]

I recently had a transbrake solenoid fail. We noticed the spring seemed extra stiff while pushing the plunger in, not sure if that's what caused it to burn out......I was told you really don't need the spring as the pressure will push the plunger out. My question, how much will this affect reaction time?? Would switching to a softer spring be better than none??