So phase one is to remove the scuff sheet and clean it up. Which I have done (and gave my other bats a clean up too as I had the kit out.)
Phase two will be to give the bat an oil, putting extra over the stain.
I have had to order some oil as I have only used Lord Sheriton for ages, then I will leave it for a day or so and clean off the excess and give it a smash with the mallet.
Then repeat the process of I need to.
The fact is I really like the bat and it is a top performer, so I think it will be worth the effort.
My suspicion is that these efforts will a waste of time and it will be impossible to soften it but I will let you know.