Sounds like typical advertisement to me I'll believe it when I see it, wish we had millions of engines out there testing these. Also I can't find any info about weather or not they sell an MDS version...

They also speak from the point of view that the lifter is the only thing causing the tick, they don't address the pushrod top and rocker seat wear that causes ticking and exhaust bolts break and cause ticking, more so when cold. Lifter failure is not the only tick they have.