Thanks to members that assisted on this one. In the end just under 50 riders took part over some parts of West Norfolk that we have never operated in.
We ran a slightly modified base arrangement into a shorter tripod mounted aerial. This proved a wise move as the control location was predominately hard ground and concrete! 2m net of 10w proved more than adequate apart from one location. However a change of location rectified that (we think shielding effect from damp trees).