people will discuss this topic till the cows come home. Some say not to used neatsfoot oil because it softens the leather to much. I use proofide, one tin will last quite some time, I go through it a little faster because I use it on my toe straps, mudflaps etc... As for the saddle, if you keep it dry you need only apply proofide maybe once a year. I have told this one story many times. I went into a shop to buy some proofide for my newly acquired used Brooks Professional. I was referred to the shop "expert" on brooks. He showed me his saddle and said it was 2 years old and he loved it. He said it was very comfortable, which I am sure it was. But it looked like I could ring it out it was so saturated with proofide. I mean I could have put my saddle with his so if soaked up the proofide like a napkin absorbing water. The saddle sagged to the rails and looked like there wasn't much time left before he was going to have the seatpost in his *******. The moral here is use SPARINGLY.