A thin coat of wax/paraffin that is brushed on will let moisture escape. Now if you dip it and get a good solid heavy coat it will still allow some moisture to escape but very little. I used to have a chart that explained moisture absorption, dipped would seal it 95%, while brushed on was something like 65%.
A 2x2 blank that is brushed on with wax will dry within 5 months in my area, which is dry and arid. Anchor Seal will take less time. If it was me, I would first get some Anchor Seal then cut and seal. Burl can really be cranky, you may land up with a bunch of firewood or a load of good blanks. Another alternative is latex paint, I know of several people that use latex paint to seal their green wood. That would kill me to get paint within a mile of burl. It is interesting to take a piece of wood that is pained some awful color and then start tuning and have all of this beautiful wood under the paint. But then I have no idea as to how latex and burl will work together since there are usually a lot of voids.
I would invest in Anchor Seal
Marvin