Sometimes you just have to buy new sails, whether they are past their usable life and out of shape, or you have bought a nice European boat that arrives with less than perfect new 'cheap' sails.
If your new sails are going to be furled on the forestay, or the main left on the boom, furled or in a stack pack, then they should have McLube SailkotePlus applied.
Having now cleaned 1000's of sails, I can say that those sails that were McLubed previously were notably cleaner and cleaned up much better that sails that are not sailkoted.
Add in the benefits of removing friction, a 30% tighter furl and halving water porosity, then the small cost of McLubing your new sails is a no brainer.
This week we applied SailkotePlus to a new set of North 3Di Nordac sails for a spanking new Beneteau 41.1, the coating gave them an incredibly slippery finish, and my instruction to the owner was not to stand on them on the deck otherwise he will find himself in the water.