Pretty sure the watco is linseed oil and varnish.
It could be that the hedge "absorbed" more of the finish so there wasn't excess to cure. I haven't used watco teak oil so can't give specific advice, but with oils, varnishes, and oil varnishes you need to wipe of the excess before it starts to get tacky. Wit pure tung oil, that is usually 45-60 minutes in my shop. With varnishes usually 20-30 minutes. Of course, that varies mixture by mixture ad temp/humidity also have a big impact.
When you refinish that bocote call, if you're worried about oils, use some naphtha or acetone to wipe the call down... and apply your first coat of finish as soon as the solvent evaporates. It doesn't take long for the oils to resurface. While you have the finish out, put a few generous drops on a piece of glass or other nonporous surface and observe it over the subsequent hours and days... that will give you great insight into how it cures. I think you'll find that where you have a glob it will wrinkle and cure very soft.