Motoadve,
Watching your videos made me cringe ... I used to fly right seat with a friend who liked to drag in his landings, with a real flat approach to the threshhold, and it made me very nervous ... if I were the praying sort, I'd have been praying that his engine would run strong all the way to the runway. The video made me feel like, if I were with you, I'd have to check my ass for grass stains from the last couple hundred yards of your approach to touchdown! That's especially risky when flying in a high density developed area like the airport in your videos ... any hickups in the engine or inadvertant stall, and you're suddenly lodged in someone's attic or back yard.
Here's one fact to keep in mind - if your approach to the landing spot is too high, it's very easy to to lose altitude with full flaps or a slip ... and in worst case, you just go around.
But if you're too low, and there's any problem at all, your flight may be terminated very suddenly with a very bad outcome, with no opportunity to recover.
Several others have commented on the same thing, so I may not be adding much to the discussion on that point ... but if your goal is to make real short landings on short/soft fields in the backcountry, then you're way better off with a high/steep approach, some flaps (less than full if you need to slip), and depending upon your aircraft, some pre-determined amount of power (MP or RPM) on the engine ... and then practice hitting that spot on the end of the runway every time.
I'm not really in agreement with LowFlyBye's opinion on the importance of using power in controlling the approach to landing ... I believe that power management is a major factor to a well-controlled approach to landing. Sure, you've gotta know your wing, but your wing is only part of a multi-part story .. you've also got your tail surfaces (i.e., the effectiveness of your elevator and rudder at various airspeeds, aircraft loadings and c.g.s, the effects of prop wash, and the effects of deck angle) to consider also, as well as your power management and overall attitude of the aircraft ... that all have to be controlled together. It's not any one part of the aircraft that overrides everything else.
On the other hand, I'm in full agreement with LowFlyBye about the importance of keeping sufficient altitude at every point in the pattern and approach to landing so that, if the tach suddenly drops, you can still make the runway without the engine. Your extremely flat approaches in the videos are the complete antithesis of that practice ... if you have even a brief engine hickup, such as carb ice (if carbureted), a slug of crap in your fuel filter, or you suck a little air on a low tank (cause you forgot to switch to the fuller tank on approach), then you're suddenly an accident statistic.
You appear to need some additional instruction on how to fly safe approaches to any airport, as well as on short/soft field landings.
Fly safe!