If you cannot make a 'go, no go' on your own initiative and knowledge then you should perhaps consider whether flying is a smart recreation?
Not a very appropriate comment, me thinks!
Gasax, I'm a bit confused by your previous post as you seem to be saying I should have noticed the tach red lining and aborted take off yet in the next breath you seem to imply that if I was more experienced I wouldn't be relying on the tach.
I checked my PPL literature and there's no mention at all about tach failure or misreading. Presumably not all aircraft even have one. On the take off roll the emphasis is on checking the tach to see if full power is being generated. It doesn't take much experience with an aircraft type to sense intuitively whether the aircraft is producing full power - if you're airborne and not even a third the way down the runway can one not reasonably assume all is well? No instructor has ever mentioned a red line and I don't recall reading about it in the C152 hand book. I'm pretty sure there isn't one in this aircraft's tach or if there is it is so faded as not to be noticeable.
While I appreciate the advice given by others in this thread and it is certainly helpful I get a bit annoyed by ppruners who see it as a chance to have a go at anyone they feel is not as "experienced" as they.