Mike Fell has taken 70-90 pounders in Maswa and has a cancellation open this year in November which is prime time there. If someone wants his contact info, send me a PM.
Mike/Maswa would definitely be the exception! Also some good ones over by Taringare. The old hotspots in the Selous and western TZ were poached out ending in say 2014. I hear elephant numbers are now climbing in those areas, but good huntable numbers probably still 10 years away. Again the notable exception is in the tourist areas of the north where, by and large, missed by the recent poaching.