Glad to be of some service ^^
As to the chaconne vs kato, if you refer back to my original comparison, i do not think that the kato has more resolution/clarity.
In fact, I think that the chaconne is leaner overall, something which is frequently (rightly or wrongly) associated with more detail.
As to the chaconne vs er4sr, their sound signature is similar, but i expect the er4sr to come out on top in neutrality and detail.
Part of the reason is the form factor. When you have an earbud and iem of the same quality drivers, you will always hear more detail in the iem.
However, if it was up to me, I would choose between the two in terms of form factor, and where you will use it.
Chaconnes are much more comfy to me, but lack isolation, while the er4sr offers great isolation, but the triple flanges are not my thing.
Hope this helps