Curious if you have access to a Staccato with the DPO/DUO plate system to compare with the AOS. Always good to have options and the AOS plates are affordable.
If I hadn't gone down the STI/Staccato path, I think a used Parody (hehe) would be in my sights. Even though a co-worker just sent his brand new "single shot" 9mm Springfield Emissary back to the mothership, I would roll the dice at this lower price point, especially if the used pistols are close to $1k.