Hello guys,
I would like to ask for help if possible. I have R6 and not a quite fond of it due to the high amount of cropping I do. I shoot mainly planes and animals and then normal stuff like landscapes, etc. I also have R7 to pair it with.
So, I'm seeking some upgrade and not sure what to choose.
First is obvious option - upgrade R6 to R5 or R6II. Not sure if R6II would be big upgrade (some thing are nice, like variable focus zones, etc.) and not sure if R5 isn't outdated and if it doesn't have hidden costs like completely new memory cards and more storage room.
Second option is upgrade my main zoom lens - I use EF 100-400 L II and it's great. Sometimes I find it misbehaving on my R6, but I'm not sure if RF 100-500 L is that big upgrade to justify the cost. And plus, I would loose reach on R7 as I have EF 1.4 extender.
And last option is to upgrade my walkaround lens - I have EF 24-70 f/4 L IS now and this is probably my most used lens, that is on camera 90% of time. But sometimes I find it lacking mainly in videos - the zoom ring is stiff, IS is not that good on R6, etc. So I though I would upgrade it to RF 24-70 f/2.8 L lens.
What do you think is the most upgrade?
Thank you very much for help 

But not everything is about reach if the 100-500 is not an upgrade. Technically, I get 560mm with what I have now on R7. If IQ and AF isn't that much better to justify the cost of 100-500 it would be better to upgrade f/4 to f/2.8 
