Please Remind Me--AGMs to Full by Ammeter Action?

I tried Mex's trick above to see if they were truly full and it worked. Took more than a few seconds to taper back down so maybe they needed a bit more, no idea. Anyway they are happy now at 13.7 and 00.0 amps holding at that with the charging light mostly on, so they are getting some tiny amount of positive amps in when the charging lamp is lit, but not enough to show on the Tri's amps number. Looks good to me! :)

Thanks again, everyone, for the good info on AGM care.