Hello Badger. Thank you very much for your honest reply. :-) Bridge community is really awesome, helpful and caring. I can't count all of these amazing people i met by playing and enjoying bridge. The only bad thing i figured out about bridge community is that it is too conservative. Im often playing in some regional tournaments in my country and i can't name anyone who would be playing any other system than Polish Club or Martens-Przybora system called Strefa. At the professional level there is 1 Polish pair that plays 2/1 system, that is Kalita-Nowosadzki, everybody else is playing Polish Club. As you said lots of convention and systems do stand the test of time but i can't say honestly that this makes them best available. Bridge bidding is still evolving and thing such as for example transfering colour that youve opened during the slam try bidding is used only by some of the top World Class pairs. It isnt very hard tool and it can be used by any regular partnership but people found this unnatural. Best professional pairs bid really aggresively for example Meckwells. If you will not force your oponents to make mistakes they won't do any at the higher level. Obviously you can use any even most conservative openings and still be very solid Player or even one of the greatest because your card Play is very very good. That's my opinion and it may change when i will have as much experience as you ;-)