I understand; I remember with a mixture of amusement and embarassment the disruption Claire caused on the grid in some of her early races by trying to be in a position to tail Fiona, but bungling her start.
Be assured, too, that worrying about wobbling on the grid, and even falling off, is not the unique preserve of the totally inexperienced. When I made the transition to a Ratracer, after thousands of recumbent miles, I was somewhat fazed by the combination of low centre of gravity (falls over quicker) and the fairly high bottom gear that I'd chosen (so I could have reasonably closely-spaced gears once the launch sequence was completed). To get the results I wanted to achieve, a good start was essential; if I gave the lead group 5 seconds start, I was stuffed.
In both my case and Claire's the solution was simple; a little bit of practice. My advice is to find a nice, quiet bit of road and practice starting off, gentle at first and working up to what you'd like to be able to do in a race. Dedicated practice sessions seem to be much more effective than leaving it to the starting and stopping incidental to normal rides. It really shouldn't take much time - I recall putting in a couple of sessions of less than 30 minutes each.
I hardly need add that gaining confidence in starting will help you out on the road just as much as on the track.
As for a "support crew", I believe Geoff did start this way on Sunday. From my limited experience this is actually a more difficult way of getting started, and requires that the support crew knows just as much what they're doing as does the rider.
Edited by Adrian Setter