I've noticed some slight variation in the shave paste before; but that's about it. Honestly, whenever I gave it a stir with my finger things evened out just fine. The stuff is made in very small batches and is purported to not contain chemicals, etc. I just chalked it up to "separation" from sitting, temp. fluctuation and such. The cubes I've used have all seemed the same.
I've seen a lot of variation in Taylors creams as well. Other than just going "hmmm," and making a mental note of it - I never noticed any performance difference. My St. James cream is almost runny and my Eton college is very thick and pasty.
My technique is nowhere near that perfect or rock-solid that I would be able to point out a variance in a product and have it be earth-shattering. Well, maybe someday...
[FONT=Tahoma][COLOR=Blue]Howard L. Sheppard
"I wish I were less awkward around strangers. I never know what to say when someone asks me who I am and what in the world I'm doing in their house." -- Andy Ihnatko