OK, I've done an exhaustive amount of playing with this spreadsheet and making test builds based on it.
The only comment I have left about the sheet is that no one should be trying to make perfect attack strings in the sheet. Not only because of averaged out haste, but because, in reality, you actually want gaps so that you can actually use all the powers you need to use outside of your perfect attack string. You need space to use Build Up, Hasten, Destiny, etc because you suck without them. And if you truly find a gap on one of your rotations, that's just time to throw an AoE. That's much more efficient than slotting up a Charged Brawl, for example.
Now for an off-topic rant.
Blast sets suck (except Fire). They are extremely poorly designed.
This is an AT with 2 damage sets and no defense. However, in order to actually outdamage the ATs which have defense, Blasters are required to be punching an equal amount of time as those ATs but have no ability to do so effectively. For a Blaster to actually outdamage a Scrapper/Stalker/Brute, they can only use their Snipe, Aim, and Nuke from the primary set. Everything else has to be punches from the secondary. If you try using any other power from the Blast set, you'll go below a melee AT. And don't forget, Scrappers/Stalkers get snipe and targeted AoE out of the epic pool. This is mindbogglingly poor design.
I've called Blaze completely overpowered before, but it turns out, Blaze is the solution, not the problem. Electric tries real hard to be good but still falls short. Dark at least smacks its head into the bar without getting over it. Every other set is complete garbage.
To cross pollinate this thread with your other hugely noteworthy thread. This is why Sentinels are bad. They have a bad primary.