Ralph, I know recently there was some discussion on calling vs. emailing a distributor for engine info. I prefer posting questions on RCU support forums for several reasons:

1. For those of us who work mostly at our office desk during the day, it is not always convenient to pick up the phone and chat loudly about RC-related stuff.
2. Most often, there are others who might be interested in the same info.
3. I like to be able to go back and review answers to previously asked questions, because, well..., I forget.
4. I believe it is more courteous to allow them to answer at their prefer time than to interrupt their presumably busy work day, particular on casual questions with no immediate sales intent.