I'm not one to piss and moan about the changes, I understand that they need time to settle in....
My only gripe with this split arena business is, as usual (being an off-peaker) the split arenas make a decreased number spread even further.
Lately, in off peak times, the EW and MW have been sparsely populated (6 - 20 players each), which does not really make for interesting play... .but whatever, those arenas are great sometimes. The LW still had 120 odd, which is enough for a fun fight and since i've taken to flying the Dora a lot lately i don't mind flying LW.
The split seems to cut this number in two, creating 57 / 22 LW sort of situations which really isn't ideal.
This is just a suggestion... perhaps disable the arena split for times when the total players online number is below 350 or something?
that way you still realise your ambition for 300 max player arenas but still allow us off-peakers to get a bit closer to that magic 300 number.
No threats of deleting my account here, just a suggestion to help concentrate lesser numbers at off-peak times.
Thanks for your time and best of luck to you, HTC