Yawningdog,
I'm not a lawyer or insurer, but one point to consider might be the legal / insurance one. Say (just for argument's sake) that you had a heavy landing while using your technique and collapsed the MLG, causing damage to the fuselage, wings and prop, possibly shockloading the engine into the bargain.
The insurance claim goes in and it comes to light that you were carrying out a landing technique that is not in the POH and that - on the evidence of the posts so far - would not be considered something that the average, competent pilot would normally do.
I would think that there could be a possibility of the claim being thrown out - and how much worse would it be if your PAX were injured - whiplash, say - and you were found to have acted negligently (see Flying Lawyer's post on the insurance thread a few weeks ago).
This is not a criticism of your technique, technical or otherwise, just pointing out that if you don't fly "by the book" you are in a poor position if something goes pear-shaped.
SD