I feel the best match for 460 bodies are a60/ck1s
but if you can't find them, then the ck63s work well in most rooms
the ck61s work well outdoors and in nice small rooms if you can't find the a60/ck1s
^ i totally agree with this. i love the ck1s caps (that's "s" for sharp, not a plural reference for two ck1 caps), but have never used them for outdoor recording. with the a60 adapter and the 460 bodies it's a wonderful combo. and they're also great with the actives. the downside is they are hard to find and the a60 adapters are expensive.
between the ck61 and ck63 caps my strong preference is for the ck61. up close with minimal crowd noise the ck61 sounds much better to my ears. however, if you're mostly recording in the OTS (or thereabouts) and/or at chatty bars the ck63 gets my vote. i also would not be afraid to use the ck63 caps outdoors. the difference in sensitivity to wind between the ck61 and ck63 is not dramatic, and a good outdoor windscreen will go a long way towards mitigating risk.