Well, thank you for input, I especially enjoyed Moultons blog. A lot to think about but not sure where to start. Several posts describe what to do when it happens. I would prefer to pursue making the problem go away by making adjustments if it is possible. I have heard different things like, shift body forward, seat post, have fork checked (I have read the Calfee article and it does make sense) try different wheel set, tubes, tires. I have been contemplating getting a pro bike fit and I wonder if I should start there or is it a component thing and I should start there?