I'll have spectrograph results from a Samsung Bespoke washer tomorrow for ultra set-in stains that I've done similar tests with against a huge number of modern washers. I am excited to see the results tomorrow under the analyzer. Visually, the Bubble Soak + Heavy Duty cycle looked to be the best at removing stains that I've ever seen. I am even more curious if I could get a delayed soak + stain pre-treatment setup going on the machine that is fully automated. Like many have said - soaking helps a lot... If it could be done intelligently on a front load via recirculation and concentrated detergent/wash media, you could have a pretty flawless system.