Robert M Watson Jr
Have you asked your sensei about specifics for training the internal aspects of the art? Maybe they are just waiting for someone to step up and show interest.
At least I'm always amazed at how many questions I have that I don't bother even asking my sensei. I wonder why that is?
Well, in the past, the school of aikido that I had been training at (Shodokan -Tomiki- Aikido/JAA) did not offer any sort of internal training. The drills and exercises we did outside of technical training pretty strictly focused on developing physical abilities, timing, ma ai, etc. And, I have to admit, that when I was really training at that school, I was dismissive of internal training concerns, wanting to focus on my technical development only. However, as I'm now training in the Jiyushinkai system, and am slowly being introduced to all that the organization has to offer, I'm definitely becoming more open to different approaches to Tomiki aikido, and will make a point of discussing it with my instructor.
Within the next few years, my wife and I may well be moving up into Mr. Amdur's neck of the woods, so I hope to be able to continue my research up there.