Thanks for posting your tach. readings.
I'll be propping mine down a good deal to maximise the engines torque.

Up and flyin' huh?! Good!
The hardest part of landing for me was judging distance and airplane speed. Sometimes I came up short and stalled. Other times I came in too fast and over-shot the landing area.
With a little practice you'll get better at judging speed by how your plane reacts to inputs.
Distance is a little different. Before taking off place your plane in the place where you'd like to land and walk back to the pits. Take a good look at how big/small your plane looks where it's sitting. When you come in for a landing you'll know your where you want to be when your plane looks the same size when it was just sitting there. Taking note of background objects also helps.

Good Luck,
Jeff