From the Prototype and PreProduction TTone's to the Production models. MODEL(S): Prototype (2023) PreProduction (Late 2023) -PRODUCTION MODELS- -1000E/1000ET -1000ESB/1000ETSB -Jailbar 1000E/1000ET Features: simulated TBolt port ratios (5 Port ST, 5/6 DT, and 4/5 DT) Fun Fact: The PreProduction variant has actually had two iterations. the MK1 PreProduction (2023) and MK2 PreProduction (Mid-2024). However appearance wise still remained the same. (including the control box interals) however only difference is the rotator internals. the MK1 had the same setup as the A Series variant, while the MK2 is more like a combination of both A and B Series. (Though the Prototype also had this too, it never caught on in the production variants) Additional Fun Fact: the Jailbar TTone was made to celebrate the anniversary of the FS TBolt introduction since 1952.