I am specifically requesting US Thrash Metal recommendations, strictly NO German Thrash recommendations. I'm aware a Thrash recommendations thread already exists, however, it's not in the direction that I'd want it to go for me (as outlined), as well as others who listen to US Thrash.

My reason for excluding German Thrash is because of it's lack of co-ordination and generally sloppy sound, which I believe reduces my ability to actually enjoy it, in my case. No offense meant towards the fans and the bands themselves, it's just not what I'm searching for.

Now, for examples to help guide further similar recommendations - I've heard the following:
Megadeth - A house name, but still paramount to my point. I'm referring to the 83-94 era.
Annihilator - Referring to the riffs Jeff Waters uses especially. Only their first two albums as well as "Schizo Deluxe".
Wargasm - They embody the sound I'm after, though not to the same degree as the previous two. All of their releases have something to offer in the way of US Thrash, keeping to a slightly simpler sound, but still effective overall.
Morbid Saint - They may have only had one Studio release, although I find it also flows as a whole, while sounding aggressive and precise, like the previously named bands' releases.
Slayer - This may have seemed like a given, though I much prefer singular songs, like the classic "Raining Blood" - Both the guitar work and drumming employed here are a perfect example of the direction that I like Thrash to take.

I'll update this as I go, hoping there are people who will continually contribute to the thread, to keep it alive.