@deacongirl I'll look into that more but my concern is price.
For example, whey threonine per 28 gram scoop is 1708, whereas 28 grams of soy is only 805 grams. Over a 100% difference. A 63 gram, roughly equal combo of pea and rice protein gives only 1887 threonine, compared to 3843 threonine in 63 grams of the whey. Over 100% gap. And this is just threonine.