I have the new h9 micro tach, and I LOVE it. Accurate, stable, and not picky at all about distance from the prop, or orientation to the sun, or whether it's in shadow or light. You have to reposition it maybe one time in 20 tops. It fits in my shirt pocket, and it's $30. Not bad in my book. It doesn't have memory, and you have to multiply the readout by 10 (why I don't know), but this is no problem for me. One thing, it doesn't like to take readings near the tips, but anywhere close to the hub to about 3/4 out it works great. That's my experience. I'm going to see how far I can throw my Globee. Man I hate that thing.