I've only dipped a couple of plastic KO crankbaits in KBS, and I didn't have a problem with bubbles.
I dipped slowly, so all the details got filled, and removed them slowly, checking to see if air was trapped anywhere.
I hung them to drip over my workbench, and removed the bottom drip with a paper towel until it couldn't be removed anymore. If there were bubbles, they must have been down in the bottom drip, and that got removed with the paper towel.
Of course, it is entirely possible that I just didn't see them, even though I had my glasses on. Hahaha