The soaps are now almost 11 months old (edit: sunflower is 9.5months old) and I thought it was about time for an update. I used them at the kitchen sink for a day alternating between the different soaps, but didn't notice enough of a difference to tell them apart. This morning I tested them the same way I did before: wash 3 times in a row with one soap and then wait a bit (didn't really time this, I guess it was +-20mins?) before washing 3x with the next.
I started with sunflower: lather was nice, rather fluffy, better than I remembered at least and my hands didn't feel tight after washing 3x.
Sweet almond oil had a similar lather to sunflower, though it somehow felt a bit more lubricated. My hands did start to feel a bit dry after this one, but it being the second soap might also play a role in that.
Rice bran oil still had the creamiest lather, though it was fluffier than I remembered. My hands felt slightly softer after using this, though still a bit dry.
Olive oil was the last one. I expected it to have more/bigger/fluffier lather than the others, because that's what happened the last few tests, but the lather was quite similar to the other soaps in shape, feel and size. I was also a bit afraid it would dry my hands out completely being the last one in the test and being the harshest in previous tests. My hands felt squeeky clean after washing and felt a tad dry/tight, but not as much as I'd anticipated. This one might be getting milder with cure.. (or maybe my anticipation was incorrect)
None of the soaps appear to have developed signs of rancidity so far. I also didn't notice any slime. They do suck up water and form a gel when left in water for a while, but I wasn't able to produce any slime threads with my fingers.