Its a stupid idea... But that's just my opinion isn't it.
Who wants do do something un-nessasary (blade windows after wfp)
In my 'experience' there is no need to blade a window after wfp. You may aswell just trad from a pole if that's what you want to do.
You obviously haven't educated your customers in the slightest if you have got to the point where your considering doing double the amount of work because your customers are complaining.
Argue with me all you want James...