I've been working with the material in Budo Renshuu (training manual for the kobukan) for awhile now, it's pretty different then Saito Sensei's Aikido. However Saito Sensei's Aikido is pretty close to "Budo" (Ueshiba's book). Latter in life Ueshiba's Aikido that is on video doesn't look much like Saito's. So it's hard to put a finger on exactly what Ueshiba was up to, and depending on the time in his life, it was pretty different.
Saito sensei did write a set of books called "traditional Aikido". So yeah, I guess you can say that Saito's Aikido is exactly "traditional Aikido"