I've seen the Rspro lose radio signal with 6.5t boosted... No way it's doing 4.5t boosted and beating the other speedies out there.... There is a short video on youtube where pattojr had a serpent S411 with a 3.5t boosted mildly and speedpassion esc, which looked extremely Quick... I am afraid that it will be the future mod benchmark, eventhough he only ran for a minute or so ....