Dr Ian Plummer

http://www.oxfordcroquet.com/laws/6th/43.asp
Oxford Croquet

43. HANDICAP DOUBLES PLAY

1. NUMBER OF BISQUES TO BE GIVEN Law 37(b)(1) does not apply. The number of bisques given by the lower-handicapped side to the higher is half the difference between their aggregate handicaps. A fraction of a bisque above a half is counted as one bisque, a fraction below a half as a half-bisque.
2. PLAYING A WRONG BALL Law 37(f) does not apply. If the striker plays a wrong ball in the first stroke of a non-bisque turn and the error is rectified, either player who could lawfully have played the first stroke of the turn may then play a half-bisque or bisque.
3. PEELS Neither player of a side may peel his partner's ball through more than four hoops in the course of a game (but see Law 46(b) for shortened games).