Most definately a lot of prop traders including myself have switched trading styles, I started off a few years back as a spread trader , shatz/Euribor and Bund /Bobl,
Ive gone outright now with more success in the Bobl but a lot have gone into the Eurostoxx I know
How did you change your strategies, what was most difficult to adapt etc? I've done the same, most equity index futures now though. It's a different game but I guess Bobl outright might still be the same ball park at least, compared to say Dax outright. Are you "still" playing for a tick? Mean reversion? Go with the trend? Do you look at the spreads at all?