When I started, now approaching two years ago, the school essentially tried to match me up with a particular instructor, but I did fly with other guys also. Like you I found that a good thing, because no matter how well you get on with the instructor, there's always something that he's missing and someone else picks up.
That school went bust, and I only continued over 8 months later. I've had the same instructor (different of course to that of the first school
) since then.
As you say, I will (try to) not let it worry me, and see how I get on. With only flying once a week, and then only when Big G decides the weather will be ok, I do sometimes get a bit despondant. Gotta work on that.
RR