Fixed the problem in the previous post!
Couple more things popped up while I was fixing Malcolm's rotating through himself. The head and one of the wrists acted the same way. The problem was me rotating them the wrong way (shame on me!). Another factor was that for some reason the rig disagreed with the back flip, it probably stemmed from my rotating parts incorrectly but when I deleted some keys and redid them it still behaved odd. To fix it I had to put in a lot more breakdowns than normally required to keep it on its path. Note to self; watch which way you rotate joints!
I think I've reached a point where I can stop now and Rachel has also hit a dead end with her file so we're saving and swapping. The only things that need fixing on Malcolm in the 'Tricks' file (the one I've been working on) is the few hiccups and shakes in the linear animation and the timing could do with adjusting, especially around the end. These things can be done when I get the file back for further work.
I'm going to work on the file Rachel has been working on ('Dare' file) as she's reached a point where she can't adjust the timing any further without Malcolm's blocking (for his reactions etc).