I have been loosly watching this thread (I almost joined but had other priorities) think it can't possibly be THAT hard to lather. Alas, it seems it IS that hard to lather. So I went to the trumpers website and took a look at the ingredients of Eucris and compared those ingredients to other Trumpers soaps that don't have a bad wrap. What I found was surprising. The ingredients of Eucris and most of the other soaps read like a typical bath/bar soap than a shaving soap. Trumpers DOES have 2 soaps that I have never seen that have an ingredient list that is more of what one might expect for a shaivng soap. Also interesting is the fact they describe Eucris as a "glycerin based soap" yet Eucris is the ONLY soap in their line up that does not include Glycerin in the ingredient list. *I suspect the website ingredient list is not accurate.
What is it about the ingredient list that makes me say this soap is more like a regular bath bar? Other than GFT's Oxford blue shaving soap and Officer and a Gentleman shaving soap, their hard soaps (based on the ingredient list) don't appear to be made using any for of Potasium Hydroxide, they appear to be made using only sodium hydroxide. This would of course make a super slick soap but also limit the ability to easily produce a creamy lather. Based purely on my interpretation of the ingredient list I would expect Eucris to lather similarly to a quality vegan bath soap.
I don't think I have ever encounterd a GFT soap so I have no personal experience to draw from. And I have been surprised by soap performance compared to ingredient lists before. For example, one of our own cadre artisans who is no longer in the business made an awesome soap using olive oil and olive oil is notorious for being a "lather killer" so base on the ingredient list alone I would have guessed it would be a poor performer. So take my thoughts with a grain of salt as they may be meaningless. As for me, I am on the lookout for the GFT Oxford Blue shaving soap, sounds interesting.