Well, I'm halfway to level 76. My arena power is just over 29k and my last GW was my hardest yet. I faced full rebel Wiggs team in node 1, and it was my first GW with every opponent G7-G10. I have yet to see a G11 enemy. However, I did also notice that my node 6, 9, and 11 nightmares didn't have any mods on any characters. N12 was a fully modded G9-G10 Jedi team. If 6,9, and 11 would have been modded, I would not have been able to finish. I unlocked EP on the 8th and he has made GW easy for me until this last one.
It is getting too difficult to use more of my bench as I have neglected it lately. For example, I used to use Rey in more than one battle, but as she is now 23 levels below me and still only G7, she got one shotted in node 3 by a max ability G8 enemy Rey. My own Rey's abilities sit at 5. EP drained my ability mats upping 5 abilities to 7.
The only evil thing about all this is I have stayed easily in the top 50 of arena now, no matter how far I drop while I'm at work I can win my way back in easily against Wiggs teams, I am going to need to work on my bench to carry more of the GW load. The last time I did that, I fell out of the top 50 and even top 100 for a little over a week. So many choices, so few credits/gear/ability mats. Funny, I see some post about a lack of training droids. I have so many as I lack the credits to use them.