Despite Bernie's change of name to Aikijutsu, I never found anything he did to be the least incompatible with what I had been taught by Saotome Sensei. It was just a very "applied" form of Aikido. I think that Bernie was largely reacting against what he saw as the move towards a less than martial Aikido, especially on the West Coast.
Point well taken.
Looking at "Explosive AikiJujitsu" a tape Bernie Lau made with Ray Ibarra and Roy Goldberg in the 1990's tells it all. His techniques are very different that those of Ibarra and Goldberg. They look more like traditional Aikido to me.