Based on my training loads and HRV response to those loads, it seems I never get to reach the Adaptation phase of the Training Continuum . Is this a problem? What would I have to do if I wanted to get into that range?
Increased intensity seems like a bad idea, because I find after intense training, my HRV doesn't settle back into a normal range for up to 3 or 4 days. It those cases it usually plummets, then climbs for two days to unusually high values, and then settles back down to a normal range. I generally never see this pattern, because for scheduling reasons I typically train Wednesday, Friday, Sunday, and therefore don't have 3 off days in a row. I've seen that a few times before or after competitions. Increase frequency? Volume?
In case it matters, the sport is inline speed skating, and we're nearing the end of the season.
 The Ultimate Guide to HRV Training p. 46
Seems all I needed to have done is post my question here. The last three training days have triggered an uptick in HRV the following day.