I know they ain't long on the scene, but.....I've been looking to get one or the other....Looking at reviews, it would appear that the R6 is better in low light...something I have to deal with a lot. The R5 has more pixels...better cropping ...both have the same updated focus system...The good thing for me is with the adaptor...my f/4 400 DO Mk 2 will fit. What I would like to know is...Will either camera be better than what I have(Canon 1DX Mk2)...The only thing I struggle with at the moment is BIF with the 2x attached...I get results but I would like more keepers, locking focus aint easy....Will my f/4 400mm DO Mk 2 with the 2xiii attached 'work' better with the new focus system on the R5 and R6..... To sum it up...What camera, if any, would be better than my 1DX Mk2 and why.....

Thanks in advance

Will