Grreat idea for a thread
I still like Fogg - he'll put up good numbers, but he'll also frustrate you at times as he struggles. In a non-keeper league, if you can trade him based on his current stats (meaning above his value), it might be a good idea.
Interesting comparison between Fogg and Ishii. I think you're right, but the reasons for being wary of them are somewhat different: with Ishii, league familiarity could be an issue; for Fogg, fatigue may set in.