Not sure if things have improved but like most electrical companies who source components from China , their stock of chips were affected and as I understand it they have had to modify their PCB's , which has had a knock on effect .
I also had some issues over obtaining ESC's and not sure if that is resolved yet .
This is a shame as all my electronics used in all my models over the last 13 years are Action Electronics [with bow thrusters being the only exception]
.........why......up till recently they had always supplied an excellent service , especially concerning breakdown repair's which were second to none when dear Dave was around .
Try ringing again and ask Kyje or Iain can help or send an email .....asking the question .....regards Ivor