Yeah, I'm glad you spotted that one - I have my serial port car_rate=115200 in my config.ini, which is neccessary to see any debug messages when in DC mode (got added when I was chasing down the DC tone initialisation issue), but a side effect is that the stacatto effect doesn't happen either...

Thank you both your help in testing this code! Couldn't'a done it without you.

Mark may well optimise my code, so sanity checking the first Hijack build with it in is probably a good idea, although I think that he sprays his keyboard with bug-repellant...