One other thing you should know- just because a grower claims good or bad results at a specific site, this kind of anecdotal evidence is always suspect for your own conditions and even in general.
Over the years many growers have complained about the poor results they’ve gotten from Bonide mixed pesticide products on this forum and others I have followed in the past. Drew is exceptional in his endorsement, but he is fairly experienced at this point- in his own conditions.
I don’t like mixed products because the only protection I usually need after spring is from brown rot for stone fruit. I’m also a commercial applicator who sprays scores of orchards, so I can use any material available and usually make use of a lot of material over time (meaning I can put the large quantities of commercial packaging to use). .
If it can be avoided, it’s a good idea to only target the pest that is threatening your fruit. Too much insecticide can throw off the natural predatory controls in an orchard- especially when pyrethroids or sevin are in the mix. I spray scores of orchards and do use a pyrethroid in many of them due to a lack of legal alternatives. Most orchards don’t get mite flair-ups or even infestations of white-fly as a result, but some do. I’ve had the same problem with Sevin, so when my only issue is fungus, all I ever want to apply is fungicide.