Thanks for all of the replies. I'm used to seeing a nice krausen on my beer within 12 hours of pitching yeast, it's a big change between that and growing a kombucha mother.
Anyways, it's 2 weeks since my first post. I've definitely seen a lot of growth in the mason jar, but it's not anywhere close to where I expected to see it at this point.
The scooby is growing and turning a nice white color, but it is not a single disk yet. About a third of the surface is covered by a scooby that's 1/4'' at it's thickest point. The rest of the surface has random spots of a culture on the surface, but it's not connected and not very thick at all.
Patience has paid off and I have no problem letting the jar sit for another couple weeks. My concern right now is whether I should add some fresh starter liquid.
The jar smells very strongly of vinegar; from what I understand, that means that all of the sugar has been eaten through.
Would my scooby benefit from some fresh sugar/tea starter poured on top? Would it promote quicker growth? Adding extra heat isn't an option at this point. Thanks