I'm renovating an old BSA Breakdown model but the front of the stock almost half way to the pistol grip has years worth of oil grease etc well soaked into it and I'm not too sure about the best method of getting rid of this. I'm reluctant to soak in Acetone as I've been told this could dry out the stock too much and leave it liable to cracking so I'm stuck really. I've seen on YouTube guys heating the stock with a heat gun etc but I would value advice from you experts on here before I do something and cause irreversible damage....Thanks.