Just got my first pair of nude patent Varas a few weeks ago in a 9B, my SA told me to get them resoled immediately before wearing to prolong the life. You can always resole the rubber, but it's pretty hard to repair a leather sole.
My SA told me the exact opposite. I had a pair of shoes that split in front and the SA said its because I added soles. He advised me to add soles only after I have worn the shoes a few times. Otherwise the clobber will need to sand down the original sole, which will change the shoe structure.
My Chanel SA told me the same thing.