I use the acetone and alcohol bath method to remove oil from stocks. It works very well, but I often wonder if I am damaging the stock further by removing more than just the oil from the wood in the process.
The wood does seem a bit more dried out after soaking, and I wonder if it has lost some of its strength.
I think the use of vacuum and heat sounds very interesting.
I wonder how long vacuum and heat would take to pull out oil, that might have taken 100+ years to soak in.
Just because there is a easy way to do a job, does not always make it the right way.
