Go it. Yes, GX85 & 20 combo is always a favorite. That means I should probably choose the E-M 5.2 to "stretch" in the challenge.I think the GX85 and the 20mm make a marvellous pair - that's what I'd use; not that the E-M5 II is a worse camera; I just like the Panasonic combo.
As to procedures: There will be a daily thread for the images - or at least, that's what we used the last couple of times; we have used the gallery before, but frankly, comments got a bit repetitive after a while. So we resorted to the buttons and discussed the challenge (and some of the images) in separate threads. Commenting is allowed, even encouraged, but not mandatory; I comment directly whenever an image really strikes me in a way that can't be expressed adequately by one of the icons.
The daily threads allow for easy scrolling and a quick first assessment - and they grow throught the day, so it's easy to find them and review them. I'm strongly in favour of keeping it that way, to be honest.
Next challenge is making myself remember to post each day of July.