some guys absolutely love froggin, To be honest my hookup ratio when i started frogging was probably sub 10% Personally theres just other ways I would rather fish in the slop. Some guys seem to stick em all of the time while frogging, personally I have a heck of a time getting the fish to hook up.
From my experience when you get a solid frog bite, You are going to see the frog get eaten and its not going to come back up even if you wait for 2 seconds. Then you gotta set the hook really really hard to make sure it crushes and gets the hooks into them.
Top water in general is a big time percentages game, thats why I always keep a follow up bait rigged, If i get a blow up that misses, I stop, wait 2 seconds then give the bait one twitch, and wait again. If nothing happens I immediately reel in as fast as possible and throw them something to eat like a senko or a ned rigged craw.
If you are fishing heavy weeds immediately chuck a whacky rig exactly where the blow up happened and to be honest better than 50% of the time the fish will hit that follow up bait.