I’ve got a 2006 HT Comp with the M4 frame & it’s a fantastic machine.
I use mine with slicks on for commuting & knobblies for off road duties. Depending on the type of tyres I put on it, it weighs in at around the 26lb or 27lb mark. I would assume that newer ones are even lighter again as they have the M5 frame.
I’ve had this bike for 3 years now & I can’t see me parting company with it anytime soon.