Spotted on Twitter: my thanks to the Westone Guitars account for retweeting my entry from 2014 on Trevor's endorsement of Westone-Alvarez - I appreciate it!
https://twitter.com/Westone_Guitars/status/1455188146451255305
And for those who crave more technical details regarding Trevor's signature model, here is a thread at the Westone forums from 2011 where head designer Tom Presley answers questions about that guitar in its various permutations.
https://westone.forumotion.com/t2288-tom-presley-qa-on-trevor-rabin-signature-models