Lack of training opportunities mixed with a number of injuries have resulted in a frustrating last few weeks. First of all I damaged the second toe on my left foot after crashing into a dojo mate, this requires taping up for every practice. In addition, a twisted my left ankle is also plaguing my training, this brought Thursday practice to a premature end as I couldn't launch from my back foot. I also missed our first Friday back at my home dojo. My missus hates it when I miss practice as I end up sulking on the sofa!
I've also had a change in work circumstances which means I cant leave early to travel into London for Tuesday practice. Consequently, I have started to visit Mumeishi dojo as its only 30 mins drive away.
All I can say is I feel like a beginner again. Holt sensei (7DR) has pulled me up on my zanshin and ki-ai into seme. He spotted that I ki-ai then let my intensity/concentration drop before attempting to engage the opponent. To try and fix this, he had me shouting like a madman for 4-5 seconds then maintaining contact before he opened a target, it did make me feel sharper but I was out of breath very quickly. Holt sensei suggested I need investigate the use of my diaphragm to help breathing. Mumeishi is a high level intense practice, I even get beaten up by their ikkyus.
edit: i found this article on breathing that could prove useful Here and Here