Apologies for the dredge, but as I am mounting my first set of tubs, I've been reading up on some very helpful threads here, and have a question about the spare. How does one tell whether the glue is still tacky? It sounds silly, I know. I am using Vittoria Mastik and after having cured one day, the glue on the base tape does not seem tacky at all, to the touch of my fingers. There is also the possibility that I did something wrong when applying the glue, but it is evenly applied with no missed spots as far as I can tell.

Please enlighten me!