"have I got the theory right"
Having just started to canter I am finding that after asking for canter twice the horse I ride is then anticipating being asked again. This results in the fastest trot on earth ( OK maybe not but I am 39 and bit if a wimp)! I feel as though I can't slow him down in trot or canter once he is in this mind set. I think I have tried the half halt and I know that I was pulling on the reins the first few times while I got used to the feeling of the new canter.
Last time I made a conscious effort to give him the rein. I think I need to do the sqeezing outside rein after squeezing thighs and buttocks movement read about in Heather's EE. Am I right?
Apparently athough I never seen this he "runs away" in group lessons ( I do private). On lessons where I don't ask for canter the laterals, walks, trot, circles, stops and starts are great. He 6-10 and great in RDA classes.