Yeah, neither of these presets really accomplish what I'm looking for. Like I said, this could be done by just tweaking a couple parameters in an already existing algorithm to create a totally new type of effect. It wouldn't have to be a new algorithm or a total reworking of this or that… The foundation is already there. They just have to tweak the behavior of the depth and speed parameters. It could be Opto, Bias, and Repeater/Chopper tremolo.
Heck, even the GigFX Chopper could achieve almost this effect, except it's not tap tempo. The Hummingbird doesn't have tap tempo or panning either.
The easiest, most accurate way to get this type of tremolo would be to just tweak the parameters of this already existing effect.