I managed my first SO-50 pass yesterday. Using a tape measure 70cm yagi I made last year and my baofeng I was able to hear chatter on the repeater for about 30 seconds.
As mediocre as it is I am really happy with success on my first try, I did attempt to listen to another pass of SO-50, but only heard a two second chirp. I used gpredict on my stream 7 for satellite tracking, and a cheap compass app on android to verify which way the building pointed.
Next I am going to try using an sdr for the downlink capture. I am hoping it will be a little easier to get the yagi pointed the correct way and give me a chance of finding the signal mid pass.