FFF, you may wish to consider a few technicalities, before `forgetting` the throttle.......otherwise.`a fool and his engine/prop may soon be parted`.....
Unless you are flying a fully aerobatic a/c, with a full inverted fuel and oil system, you will find that you may end up with an airlock in a gravity fuel system, due to the high lateral fuel surge, and also no oil pressure for similar reasons. Not only that, the gyroscopic forces on the engine/prop could lead to a sudden`TWANG`, and the CofG somewhere,well behind you.....If it doesn`t happen to you, it may happen to someone else........If ,as has been stated, by several others, it states in the POH/ACM, that you must not, then why go against that.