I really like this discussion as my wife and I were talking about the exact same thing re: blocks. My thought was, as some others have expressed, that the shorter the extension on the front landing gear, the more stable they would be.
After much thought about this issue, I went ahead and purchased JT's stabilizer bars for the front for $500. Here are the links to some pictures:
http://jtrv.com/images/100_0030_spot.jpg
http://jtrv.com/images/100_0054.jpg
I am intending to install on our next trip, this weekend and will post the results if anyone is interested.
As for the pullrite hitch and bedsaver, I have both, and high-hitched (on our very first trip out). As a novice, I didn't know exactly what I was looking for or at. Now that I know about the hooking mechanism, I grabbed some of my wife's red nail polish and painted the mechanism red in the closed position. Now, if I see red, I am happy!