last bloke i taught, i started him off on a normal set, one which id do on my own.. that way nothing could go wrong no matter what he did..
you start laying on...3/4 the way in start him off flattening off reeaaaall slowly..
that'll stop him making too many mistakes, and make sure he keeps his trowel flat..
wash your own bucket, watch him for 2 minutes, correct his technique and knock up your topping..
start laying that on while he's still flattening the last lot... nice and slow..
then, when he's finished flattening the first coat, he can watch what you do for 5 minutes then start flattening the second coat..
you wash your own bucket again and keep an eye on him for a minute or 2.. (keep that trowel FLAT you little sod etc etc)
then just start 2nd trowelling behind him correcting any little mistakes you find and giving him little tips on filling slacks, you wont be needing water etc..
then when he's covered that pass he'll be back to the start and youll be half way round (in theory)
when youve finished your pass youll be onto final trowel.. you wont need to polish it..
thats it.. no worries... takes half the effort on your part and youve nothing to worry about..
in fact once youve got him up to speed using this technique youll be able to lay on nearly twice as much as normal and pay labourers rate for what another spread would do... or double your profit..
thats when you can start having 2 big ceilings in one go..
when you start teaching him to lay on though take it right back to standard 1 person set size or youll be cleaning up for the next 2 days!
then, once he can lay on, flatten, trowel up and final you can give him a little set to do on his own but that, youll find, isnt as cost effective as having a double size set with 2 people, youll get half a set out of him on his own..
once he can lay up and finish a set similar to you your gonna need to pay him decent money..
