Right then Im home - new RI and rode a different horse!
Firstly the new RI is older and a bit scarey but she is was great.
The new horse (Apollo) was 16.1 but I really thought he was a lot smaller - the RI said he is the same hight as the other horse (Becky) I rode but Becky was a Irish Draught and this horse more TB cross, what she said before we got started when I explained my problem with sitting trot is that Becky is a lot bouncier and her neck is a lot higher and this horse Apollo is more like a pony and the neck is a lot lower! If that doesn't make sense I am sorry but it did when I sat on Apollo.
Straight away the new RI pointed out I needed to lean back slightly more and raise my hands up more. When I did this I did feel more secure in the saddle.
Apollo felt a lot different in rising and sitting trot and the only way I can describe it is that she felt like she has shorter strides.
I found sitting trot a lot easier on Apollo and especially leaning back slightly.
Going into canter I didn't quite get again sitting as because this RI pointed out earlier I needed to sit more and this time I felt where I was going wrong.
Even though my seat is fine, she said I need to leaning slightly more back and shorten my reins as I am letting the horse bear more down on his front legs and I am going with himm thus falling forward and loosing slight balance. Raising my hands and shortening the reins I felt a lot more contact too.
Sorry if I am not making sense but the lesson ended up with me realising that my weight had been slighty off and changing it and coming to corners I could feel more in control. I wished I had another half hour straight after to concentrate more on the sitting trot to canter transition but I feel that with the next lesson I can work on what I have learnt today straight away and the next lesson sort going into canter more.
I have asked for either Becky or Apollo on the next lesson and will apply this to either - both being very different horses. I would like to have gotten on Becky straight away to see if changing my seat slightly helped with sitting trot with her but that will have to wait.
I did definately find that concentrating on sitting upight and slightly more leaning back and shortening the reins and raising my hands did help with everything and sitting trot.