Hey man, if I blew the design temp on those loads, it was an honest mistake. That is truly the temperature I designed around. Still, can't understand how that happened.
Listen, under any other circumstances, I think you and I would get along great. Many of the things you are saying (larger coils, slight undersizing for efficiency, etc..) are the things I have been saying for years. Many of those ideas were fights I got into when I first showed up here. Heck, I was impressed you didn't stick a four ton unit in that house like my contractor tried to do.
But, all those things have trade offs. Larger coils with 400 CFM per ton reduces humidity control. Undersizing 1/2 ton without the customer being on board generates complaints and even the occasional lawsuit.
That is why I am such a fan of modulating systems. I was in love with the old Trane variable speed units, and nearly cried when they took them off the market. I now work with two and three speed systems, variable indoor blowers, modulating scrolls, and other forms of capacity control.
I did not mean to get cross-ways of you, I just reacted to your cocky attitude and denigration of our industry. My apologies.