Early mildew problems,
My brother and I saw Westinghouse FL washers with mildew problems in the 60's and 70's. It was not a common as today, as hotter water and better detergent were used then.
My washer cycle is, Prewash, Wash, Spray rinse, 200 RPM spin, Rinse, 200 RPM spin, Rinse, 400 RPM spin. Total cycle time is about 25 min. The washer cleans very well, but the spin speed is low. I'm lucky to have a Bock extractor that I always use.
My washer is bolted down to the concrete floor with 3/8" lag bolts about 4" long into lead shields. I think it would be easy to install an electric pump, I thought about doing it when I had a pump seal leak, but was able to find a new seal and repair it.
Some photos of my Philco-Bendix washer,
Photos 1 thru 9, I found this new in the box several years ago.
http://automaticwasher.org/cgi-bin/00ShowCollectionGETD.cgi?photoshow=11@Youngstown DW, inside view@JEFF_ADELPHI.jpg&dir=/COLLECTIONS/JEFF_ADELPHI
Iron-out and detergent,
Iron-out and detergent should not be used at the same time. Iron-out is an acid, and detergent is base, they will neutralize each other and be ineffective. They should be used at different times.
Suspension system is not the problem,
The tub is tearing apart at the seams due to shifting weight at high speed. No sensor could prevent this problem, because it only takes a split second to happen, and the tub can't be slowed fast enough to help. The problem is a very weak tub with crimped...