Duffy, how far are you from the Belgian border? I'm over in Belgium later on in the year, could do a day trip and take her out for you (provided I am supplied with a step ladder to get on with!) am quite happy to get on anything (as evidenced by me repeatedly getting back on Reeco!) and I'm very very hard to unseat.
Around 45 minutes.. you're more than welcome to come and say hi and ride!! And we have step ladders xD
I managed to cling on for dear life when I discovered how petrified she is of whips.. was more scared of my trainer (if you meet her, you will understand LOL)
One rein stop.. urm.. no idea.. I need to google or look in training section... is this where you pull nose to shoulder? In which case, no idea, never had to put it into effect as she stops from seat...
Also, first time I lead her out I am going to do it with bridle/lungeline. Where she has respect for a rope halter, I would rather have the extra precaution of something I know WILL stop her if needs be.
Thanks for the tips trailrider!! SHe will follow me anywhere, as far as I am aware, so it'll be good to desensitize her to all these things :)