The answer is actually two-fold. Is there an ideological maximum where sloppiness inevitably becomes..... something else? and do you think that Dave Strider and Karkat Vantas are capable of doing anything half-assed?

I think you know as well as I do that the answer to both of these questions is a wholehearted, emphatic YES. Which inevitably means the answer to your question is no, unfortunately. Davekat has ascended to the state wherein the bounds of the word "sloppy" wouldn't even begin to describe the ungodly creamy swamp-like coitus that these two undergo. To pare it down to something as banal and pedestrian as sloppiness would be like asking if a supernova is warmer than a bowl of creamy macaroni-and-cheese(which, by the way, is exactly what I imagine their tantric sessions to sound like). Give em a little more mfn credit, damn you. Sloppiness doesn't even fucking describe it.