I think I will be running another Posi later tonight around 8 pm or so Eastern.
I like the Positron TF. My quickest time was 1 hr 47 minutes with 2 blasters and 1 empath. An equally grueling experience (for some) is any of the TFs in the shadow shard. My personal favorite is the Sara Moore. A solid team of 8 can do that in a little under 2 hours also, plus you'll have all of your lvl 50 powers.
I just got done last week tri-boxing my 3 accounts on a Posi run. That was grueling as I had a WP\SS tank (which I played), BS/WP scrapper (set Slice to auto), and empathy defender (Healing aura on auto). That was fun 
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It should be plenty easier with powers up to lvl20...
I figure there will be plenty of new characters, some elec scrappers and tanks, some /AR defenders, maybe a Rad/ blaster, how about a /cold controller?
How about this weekend? A few days enough time to get to lvl10 or so and get some IOs for a Posi??
Call me sick, call me demented, but Positron is probably my favourite task force. I like the fact that everyone is (was) on a level playing field, people may or may not have travel powers, very few have end recovery, and the team buffs make such a huge difference.
I can remember a late night Posi I started with 5 and had one drop off, it took us until almost 2 am to finish! Good times. Or a time when we had a team of 8 and the two highest on the team were a lvl16 and a lvl14. They both dropped after the first mission (which took a good hour). LOL Lots of deaths, lots of levels, lots of fun. We had more leave and had to quit that run, I still got 4 levels and had a blast.
I hope there are some others out there who also have an bit of a masochist streak in them and want to run a newly rolled up hero though a Positron.
How about a Saturday morning / afternoon?