Thanks to those that replied. I have a few generic Abiu seeds started now, but was very excited to hear about the March 2022 introduction of the E4 abiu which seems true to seed. The grafted Abiu I purchased 2 years ago was from Leaph in Lake Worth, but I am locked out of Facebook for over a year now lol. Leaph warned me the grafted tree was not hardened off yet, but in my zeal to acquire this fruit I insisted I buy it. Oh well. The search will continue...