I tried calk a while back n gave up, it was too soft and tore, maybe there are better caulks but i gave up when i used plumbers goop or amazing goop and it worked the best. after i figured out how to get it in the flow groove, shoe goo also works pretty good and is slightly more responsive than plumbers goop.
it is best to use a metal yoyo to use goop or shoegoo in because you can use a plastic polishing attachment in your dremel tool to clean up any mistakes
i actually like to put slightly too much in my flow grooves because then i can take off as much as i need eith the dremel
when the stuff wears out you can pull it out of the groove and shoot it across the room like a rubber band. its not as rubbery as rubber, but not hard as a rock like plastic either