In the shop I worked for all we ever used to clean was Lexol. First we went over it with Lexol PH leather cleaner and then with Lexol NF ( neatsfoot but a non-darkening formula). If you rub in the cleaner with a piece of wool, the used a toothbrush for the tooled areas it will get the dirt out that is what caused the most damage. We dealt with alot of show guys( ropers and pleasure) they were big on keeping there saddles as light as pssible and this combo left them shining and with as little darkening as possible. We oiled our new saddles and tack with olive oil, it gives a nice light honey color and goes on even. We never had to set stuff out side to even out the color, like I've read in several places on here.