You will never be in and out of a ts restaurant in 15 minutes. Never going to happen. Just getting seated, getting your menu having a server come over is a process
Placing your order, getting your order, consuming your order, getting your bill, paying your bill, getting change back or cc slip to sign. All takes time.
I get it, there are a lot of neat places. But there really aren’t any restaurants that fascinating, imho, to warrant this exercise. Not to mention, you will need an adr for all of them! Which includes a no show fee
Now, back to your real question.
Going to a ts restaurant for just a cocktail is a faux pas. I am a supporter of order what you want, but just a cocktail is what bars and lounges are for.
Now if you are doing drinks and apps? I’m all for it.
Personal tipping habits is not a topic for discussion, so please don’t say anything about tipping. Those posts will be removed without comment.
When you are planning out your days, do not underestimate how long things take. Resort to resort using Disney transportation takes 60-90 minutes. Resort to park 60 minutes. Park to resort about the same. Everything takes longer than you think!