Yea gotta agree with Seratna about U2, the amount of unsafe fireballs he did on wakeup…i seen like 3 chances to land U1. U2 is great for the fact that you can hit confirm, but the damage scaling due to getting those 3 or 4 hits really reduces it’s strength. In a match-up with a fireball char landing the U1 is great because it’s free damage, you don’t need any EX so you can keep it for a super which you can hit confirm, so you have the best of both worlds.
Also if you punish him for a fireball he’ll think twice about doing it again, giving you more space to move around in and make it easier to push them to the corner to really start beating on them with JK’s, normals and mixups. Fireballs aren’t a big deal for Adon with taunt 9, HK or EX JT, forward dash (for Akuma, Sagat and Ibuki) and MK JK, except for maybe Juri and Gouken because of the height/angle unpredictability, but they’re a big part of Ryu’s gameplan in general and especially that Ryu you were fighting. If you take that tool away from him and make him think twice about his offense then you’re at a big advantage.
One thing i found with Ryu’s is they love using that SRK to beat JK’s, sometimes it trades and sometimes it goes either way (i haven’t worked out they why’s and how’s of that, i’m quite new to Adon) but if you do :db::n: :db: when using MK JK to jump fireballs instead of :db: :d: :db: you can bait out an SRK by standing and crouching near the corner, it’ll probably only work once in a fight (unless you’re fighting a flowchart Ken, then it’ll work pretty much anytime you’re in SRK range :P) but 300 odd damage can be quite helpful
As i say, this is coming from an Adon noob so feel free to correct me on anything, it’s just what i picked up on from my four or five hundred fights using him.