2m WSPR?

Yesterday I received an email about 2m WSPR, to which I replied. It has got me thinking. I've not tried 2m WSPR since I had the big-wheel horizontal omni up, so I ought to have another go. The last time I tried was with Bob G3WKW. The main issue was rig drift, even with a TCXO. As I recall, even after a full day we only managed 1 spot! We are about 140km apart. It will need a long test. I guess I can check the frequency by using GB3VHF.