US Battery "finishing" charge recommendation

I have frequently posted about doing this, as you may know, but I only do the 15.8 trick once in a while as a "recovery" method after camping doing 50-90s or at least once a month on Float or when camping on solar. IMO it is essential for deep cycle batts like it says in that link and also on the Interstate site for 6s.

For regular recharging I go to about 14.8. One thing about 15.3 while under the fridge limit, is that it is over 15 and some inverters have a high voltage shut down at 15v input.