Today I flew around Cloverdale airfield (CA). I started at 750m altitude and found my first thermal a few minutes later (6.53 pm). This thermal lasted for 3 minutes and took me to 1000m altitude. Next thermal I encountered was 5 minutes later (7.01 pm) and lasted for 4 minutes. It took me to 1000m altitude starting at 850m. Then I flew around for 13 minutes without encountering a single thermal and I was forced to get in to the landing pattern and land at 7.20 pm.
Settings where 0 kt wind, 100% thermal activity and almost no turbulence. The strongest thermal I encountered was 6+ m/s but was difficult to centre (my bad) the first thermal was around 3 m/s and was easy to fly.
This scenario would be a reasonable day where I come from (the Netherlands, where thermals in excess of 2 m/s count as good thermals and thermal flying is usually a tricky business at best) but in a simulator with the strongest thermal condition set, it is a bit meagre.
Like Jan said, I would not dare to leave the vicinity of the airfield in such conditions, unless off course you have a craving for an out landing.;)
Little tweaks in thermal strength, frequency and duration would make a huge difference and would make Aerofly FS2 a seriously interesting (early access) alternative for Condor soaring. Cause when flying a glider in such a beautiful scenery and finding, centring and climbing a strong thermal towards the heavens is a really nice and satisfaction giving experience. Being able to really leave the surrounding of an airfield and go cross country, hopping from thermal to thermal and along the way discovering the scenic spots in the sceneries would be even better. Can't wait for it!