Audyssey Setup Question

Today I did another Audyssey setup and noticed a significant improvement in the subwoofer response. The subwoofer is a Martin Logan Dynamo 700 and it's hooked up such that it should bypass any internal cross over. This morning I was playing a CD with heavy low bass and noted an obvious transition into the subwoofer when the bass dropped into its range. After doing the setup it was nearly seamless. I did set the subwoofer cross over as high as possible this time, but it shouldn't matter from what I've read in the manual. The only thing that I did differently was to do five measurements rather than the normal three with the last two being between the first three. Should that make a significant difference or is something else going on?

This is the first time with the subwoofer setup in the forward firing configuration,but I don't see how that would make a significant difference other than it doesn't put so much vibration into the floor.

Any thoughts?