I soaked the sample jacket about 5 or 6 times in the shower, and dried it naturally - it just kept washing the neatsfoot out. Leather got a little harder in places naturally, but it does spread the oil around even more. That is good. On the not so bright side, it's hard to modulate effects like that, so go easy on it. I don't think I intended for them to go too dark too quickly.
Are you brushing it regularly? I never did that, but I can see that might be like giving the pores a massage.