Thanks very much, Heckler. I followed your link this morning, and have pondered as I went about my day. The option of XEF is very helpful.
Because of agency stipulations, I don't get to follow the CCP model exactly, and have to do some convoluted workarounds. Your tip led me to the CCP blurb, which linked me to the Canadian Portfolio Manager models using other funds.
This is great, as now I can rearrange things to match both my needs and the agencies' needs while doing less math each time. Key was to separate my US fund from international so that I can see at quick glance what I have in each, and not get overly weighted in one or the other when the agencies do their thing. (Agency's middle man doesn't recognize that 54% of VXC is US.)