Oh I dont know Gordon. its that tough

First flight of today was on a new Kingcat. Locally built with a Booster 160. Wow it was fast! I have always been more of a Bobcat fan myself, but this Kingcat was hauling and tracked straight as an arrow to boot. I am only sad that I only managed 4 minutes before the booster decided to splutter, but not stop. I then found the throttle delay to be really really slow. ( Like 10 secs ) Strange as I have never experienced this before. ( Any ideas ) Still it carried on running and the Kc landed fine.