What ?????? Board finnish gives the best finnish on board and reskims thats a fact.Setting time about same on reskims maybe get a little longer on boards with m.f.
I use board finnish on everything artex,boards,reskims hardwall the lot !!! COntrol the suction correctly and board finnish i a great product,worth paying 20p a bag more for.
i know b/f is best suited to medium and lower suction backgrounds but its fine on bonding hwall etc,just control the suction or get on it earlier.