I emailed Paul about it, the mamba motors wont be legal as the inside dimensions dont match the EB rules, the speedo is legal (no such thing as an illegal speedo) so if you do still want to use it then i would either wait for the download off the castle site so the ESC will run sensored motors smoothly or get the Mtroniks Plasma45 (6.5 equivalent) which is sensorless and BRCA legal
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Canon 40D (350D backup) - EF-S 18-55 - EF-S 17-85 - EF 100-300 - EF 50 - Canon 430 EX || Speedlite - Canon BG-E2N Grip
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AX-10 Crawler - Thats all I have left!!!