Not sure they even need to reformulate as the soap is made using the natural lanolin content of wool fat and is also not tested on animals.
I don't eat meat but I would have no problems using MWF as no animal is harmed if the wool used is from the yearly shearing?
MWF's main ingredient is tallow, which I think are the excess fats from a cow carcass that are not eaten (other fats are, like suet and so on). I myself do not eat meat, but I have no problem using shaving soaps with tallow.
The Arko puck is different from the stick, but it may have similar ingredients.
AFAIK, they both have the same ingredients but in a different order. It's been a while since I used both, but I found the Arko Stick to be a lot less slick than the Arko Puck, but I think I might have got one that was either old or had a minor QC issue. The stick is supposed to be a lot softer than the puck, but my stick was rock rock.
The Derby soap is very good as well, it seems to go under the radar a little.
I think any reformulation would be a crime against shaving, if it ain't broke then leave well alone!
Paul.
I'm going to start hoarding MWF just incase it is reformalated! Quite a few tallow based shaving soaps gone the way of the dodo in the last few years, the German ones (Palmolive, Speick, Tabac, Wilkinson, Fine), Valobra, Lea, Haslinger, Williams.
Even bath soaps that are being reformulated into Palm Oil from tallow. I think it's only a matter of time until others, maybe even Arko shift to Palm Oil, but I can speculate like the paranoid lunatic I may possibly be.