Would it be easier if you changed the direction you are riding? Just wondering... because in the case of Centinnial Cone it is easier to avoid others in tricky areas because most people ride it clockwise so we are all pretty much going in the same direction.

Still it is a tough call on that and I wish I had some suggestions. Luckily for me DH's brakes sometimes squeel so others here us coming. There is no need for them to be grumpy though...they should just enjoy being able to be out and riding.