I am sure it was out of position as the traffic pattern the aircraft was flying was not flown by aircraft before and after.. also i had already done 3 approaches. There are some pretty distinct features which would be your base turning point such as Power Lines, a distinct farm etc.. the only time you would likely deviate is for a without flap landing.
The other aircraft in the pattern also turned at the same point as I did...
I agree with the point about comparing tracks etc and it can be difficult to judge but it was clear in this instance even to the chap in the RHS. However considering there was an instructor on boad that plane I just wondered about the semantics etc.
But fully take on board what you and others have said.
S.