Forward thinking artists don't move from project to project creating new work to accommodate the short sighted. Presence and ITTOD aren't supposed to sound like other Zep albums. That was by design. Daring to take chances experimenting with new ideas is what sets this band apart. The results on Presence and ITTOD are what the band intended and being unavailable to consider the unique beauty in these works with an open mind is a shortcoming on your part.