I can fly kick (in fins), but trying to put the top half of the stroke in play somehow switches my legs into breaststroke kick- I'll have another try this evening.
I think if the IM is to be a balanced race we'll need to handicap the breast and fly refusniks, catch-up drills maybe instead?
I also think (following up something Coach B said earlier) we may need to tinker with the schedule:
100m FC: 4 races (3 heats + final) @ 2min/race = 8 mins
400m FC: 4 races (3 heats + final) @ 8min/race = 32 mins
100 IM: 4 races @ 4min/race = 16 mins
150 relay 3mins
Gives a total of 59 minutes of swimming. My estimates on time may be a wee bit out, but possibly just do the 400s on a 'best time' basis?