Sorry to hear that you were disappointed by your first visit to the Cambridge Club.
Have never visited, but relationships with the couple of Cambridge members with whom I have been in contact have been good.
It is not the Club's fault that you found the talk uninteresting.
I am also a council member of the Peterborough Engineering Society, and over the years, we have had talks; thankfully only a couple; that have not lived up to our expectations.
As already said, you get out what you put in, and it takes two to tango..
I have always been welcomed when in contact with other clubs, such as Worthing or Hereford, and have always felt among friends.
Happily, I can say that visitors / guests / prospective members are made welcome at Peterborough Society of Model Engineers meetings, and not shunned.
Our members are involved in almost every aspect of the hobby; Trains of all gauges, Road Engines, Stationary Engines, Clocks, Boats, Tooling. You name it, and there will be at least one member involved in at least one of these. If you could have come to the Spalding ME Show just after Easter, you would have seen the range of our members work.
And NO, I am not on the committee, just a long term member. (if it wasn't what I wanted, I would have voted with my feet many years ago)
Don't give up at the first hurdle, go back again! Personally, I'd like to see you as a PSME member, but maybe it's a bit far to travel, although we do have members from as far afield as Boston.
Come and visit us at our Rally at Sacrewell, in July.
Howard