Wow, Chris, you executed much faster than me! I didn't really ever feel like I had trouble with memory recall, so I'm surprised I was that slow. I was being a little more careful - in many places where I would normally optimize and do a near-optimal commutator for wings, I went ahead and did straight r2 because it felt safer. But I can't believe that alone accounts for my slow solving speed. I guess it's also true that 2 of my 4x4x4s were old Eastsheens, so maybe that accounts for part of the slowness. I forgot that when I switched to a QJ, my 4x4x4 BLD times sped up by about a minute. That might really be a good bit of the difference.
As for my memorization, I took about 5 minutes for the first cube, but then quickly realized I didn't have it solid enough. I slowed down as I went through the others, but not a lot, so that at around 24 minutes, I finished my first pass through all 4. The second pass was pretty rough and I had to rebuild quite a few places, but by the third pass, it was getting pretty close to solid. Corners are always a real problem for me with unusual multis and relays; this time I went through an extra pass for just the corners, and I think that really helped. By my last pass through the memo, it really felt quite solid, and I wasn't even at 33 minutes yet!
And you still outraced me - I just happened to make one less mistake than you. It's really cool how closely matched we are - it makes it especially fun to race with you!