Amongst the many benefits of having a GoPro mounted above and behind my head is the chance to review every takeoff and landing, not just from memory or the observations of a (fat?) passenger, but from the actual video. I've been working on the same landing issues as this thread, and have noticed from video review that my stall speeds are much much lower than I would have guessed. I say guessed, because I'm not looking at the airspeed indicator during landing.

I find the concept of "and a few knots extra for safety" to be something that adds in a lot of extra landing distance, which is just fine in many circumstances, but not so good for the kinds of landings I'm hoping to achieve consistently. Perhaps a relatively high angle of attack, a steep descent, and a "juicing" of power at the proper instant needed to arrest that descent is more effective for me than carrying extra speed.

When I have a passenger, the "juicing" comes a little sooner, and lasts a little longer. It's not particularly related to the flare, because at the speeds I'm using for approach a big flare input would just result in a stall/drop-it-in kind of landing.

I love the GoPro for one other reason, which is using the video in combination with Google Earth's ruler to measure my landing distances. No more guessing, I can tell precisely how long it took to get it stopped. The only variables I can't observe are reported wind conditions and pilot readiness.