"I've had three 3 star paddlers involved in rescuing this big lad. he
has sunk two instructors and flooded his own boat in rescues, so if in
that situation you need to find a way that works for you - even if it
isn't textbook. "

Thats the sort of situation I am worried about - any ideas for
unorthodox methods?

For waht its worth the others don't raft up if there is a capsize
a) beyond their abilities
b) they would really catch the wind and be miles away by the time
rescue completed.