Was told something useful which I hadnt really thought about before the other day. When using the BUMPFFICHH checks, Call downwind etc and then straight away put the gear down (obviously this only applies to RG) THEN run though the checks. The reason being if you do the brakes,mixture and the gear check first there is the risk that you just go straight on to the rest of the checks without waiting for the gear to fully extend and lock, obviously if it hasnt gone down and you havent checked its going to be a bit of a surprise on final! If you lower the gear first, you do the Brakes then sort out the Mixture and by the time you come to do the Undercarriage it will be down and you can do a positive check.
Some might say you could just do a different set of checks to avoid the above problem but as Chuffer said, as long as you do them all theres no problem.
C250