I've only bottom water my SIPs through the reservoir and the bottom several inches stay very wet, like underwater wet. That's what I mean by drenched. I recently soaked the entire pot from above with a 1x pot size mini-flush that drenched the soil pretty good top to bottom and then I let it drink up that water over the subsequent days.These are in kind of a constant drench as they are SIP's. That's how my mind sees it. Kind of. Do you have a special definition for drench? Moving water, amount of moving water through?
I plan to top water weekly, but not that heavily. Maybe more like 1/4 of pot size from the top.