awww man, I was hopin you had somehow implemented the hydra and muta heroes into the tech tree! lol... that's what it sounded like...
I don't care what you've done with the heroes to much; it's nice for show, but it's not nearly as much used... for instance, you don't exactly have to balance the heroes, do you?? =P I mean if you're talking UMS, they don't work well with mods that affect unit's weapon types and fire rate! they're set to their own damages, and then the balancing's all messed up.
Anyhow tho, it would be REALLY nice if you'd list the stats and changes and attack types(aka in this case concussion, explosive, normal), and any other change, maybe not resource related lol, just mainly non-number things... so we map makers could make cool ums's for it, and melee'ers can take full adbantage of the knowledge. (knowing info like this is the only edge i ever have in melee lol...)
I don't know if this'll help, but I got this Excel spreadsheet from some popular site like 2-5 years ago, no idea what it is now =P, but i added some extra columns for things important to me, like what i call "power rate" which is actually damage rate... taking into account for cool-down time... If you want to use this, you could just delete any weird columns like that or mineral/gas prices and number stuff, and provide stuf that we can't change, like Supply Used also... And maybe add another "Notes" section to add things like supply given (thinking zerg here), the kind of splash damage(hydra's friendly full damage splash <<<<3333) just whatever... Yeah it's a big task, but i'm sure everyone would love to have it, and it'd be a hundred times easier for someone who already knows what they did rather than us testing... though maybe you could get some testers to do one race for you lol...
whee i like to ramble... ok thnx new version... must check, bye.
(oh yeah, there's some things in that excel sheet that aren't formulas that look like they should be, but are entered manually. It also seems I was adding a section for specials, but that never went anywhere lol...)