if zinc is given then you can give manganese if you just give manganese it will kill 3 beta hsd. ARL even gives copper to slow oxidizers but in a certain manner. IMO this slows down their programs a lot. TE never give copper to slow oxidizers. ARL is taking a safer route.
There are tons of different slow oxidizers with low ratio with high ratio. They all need different things. I usually rec manganese and zinc for slow oxidizer. And copper and magnesium for the fast oxidizer. This is not generalization. In general, slow oxidizers need to chelate copper, fast oxidizers need copper.
Slow oxidizers are deficient in bioavailable copper, their ceruloplasmin is low. If you feed them copper, ceruloplasmin will go even LOWER. Low ceruloplasmin shows the body does not need copper at this time. Ceruloplasmin goes up with the thyroid hormone, since copper is used to slow down the thyroid .
this is why in slow oxidation ceruloplasmin will be low, and body will not need much copper or iron, and these metals will build up in the liver, if person overeats.