I’ve Nobsound springs under 11 pieces of equipment. All with 3 footers under each.
I just picked up 2 new sets. That is my approach too Brian. Thus, Now have three sets = 4 pieces of equipment. Was just playing around with spring counts on my Belles 400A this afternoon, which is a beast. Started with three springs initially, but added a 4th spring to each of its three today (in the center).