Opinions on running matching High/low Octane tables vs. Different ones

I have tuned before and matched the high octane and low octane tables to match. I have also been playing with running the High octane table one way and then maybe subtracting a few degrees in the low octane table in the WOT areas as a safety buffer.

The problem in doing this is it seems that the computer does not always use the high octane table and it seems that even if KR is not present or logging, the PCM is guessing which table it wants to use. So in one pull it maybe 25 degrees like the high octane table and the next pull it maybe 20 degrees at wot like the low octane table with no KR logged or occurring.

I am just curious as the others thoughts on this. It is better to just match the 2 tables so you won't have this problem?

Match them for tuning just so things stay put. When you
are all done, to where there's no KR showing anywhere
but timing is tight, shave a couple off the LO table just
for bad luck like lousy gas, sensor drift or hotter weather
than you've seen. That's the whole reason there's a LO
table to begin with.