John,
I use acraglass to fix all cracks. It will inject through a syringe-hypodermic needle (large one). If the crack is too tight to get it in, use small drill at several locations back along the crack. Acetone will clean syringe out after your done if used before it sets up.

That is a familiar sight. It can take a lot of time and effort to get it out. Just keeps coming to the surface. Patience and keep repeating the cycles.

I had one that after weeks of heat and multi-day acetone bath cycles, the oil was still coming to the surface. I then got impatient and boiled it in a water/TSP solution followed by a clean water boil to rinse. A ton more came out that way and after a lengthy (weeks at room temp) natural dry heating brought up no more. Probably not a recommended method since it might crack or split the wood in the boil or dry stages. I was lucky and it turned out great.

Yesterday my daughter wasn't feeling well so while watching her I was able to do multiple oven then wipe downs. About Four more oven soaks seems to have gotten the rest out. I am going to do another acetone soak then another oven soak and see how it looks. I'm not going to rush it.
I am dying to see how the wood looks with finish on it. LOL.
John

i wish i had you fellows patiece...charlie