Good luck and dont put your face too close to the slate. if you get a shard of slate in your eye dont rub it and go straight to a mirror and you should be able to rub it towards the tear duct where it will come out.
I'm looking to start up the cave industry along with a pellet food bit on the side in the summer....all coming from the website PF.UK...forgot to let you all know it was me that bought it..