Quoted from metallik:Having played WPC games extensively for 29 years, I'd love to see the methodology and data to back this up. I cannot recall the last time a dual-wound flipper collapsed on me... meanwhile the UPF on Mandalorian buckled a couple times under harsh rebounds last time I played. Completely and utterly disagree with your conclusions here.
Not joining this argument but that is probably anecdotal. Stern is still using coil stops that either fall apart or explode within 100 plays.