Gee Whiz Julian, I hope you ment dropping down through a "gap" in the clouds instead of "in the clouds". Try this if you don't have alot of room to move. Half flap, low power setting and a steep descending turn at about 10kts above the stall, or on the buffet if you have the feel. What you end with is a tight radius turn. Try it on nice day sometime, it's good fun.
Formation Flyer, I have seen it written in the P.O.H. of the C150 to avoid prolonged unco-ordinated due to the possibility of fuel starvation. As soon as I find it again, I'll let you know.
Cheers,The 150 Driver