As franky says the mechanics of WFP can be picked up quickly - what takes the time is learning the best order
to do things learning the round and finally all those little 'extras' you learn over the first year as the seasons change
ie. from WFP in summer on a still day to winter on a windy day.
Also don't expect them to have the same 'drive' as you ! - when we work as a 2 man team we get approx 75% more work done than when on my own ( this after 4 months ) but when on his own the work rate is just under 50%
this is not a problem as pay is percentage of days money whether he takes 4 hrs or 8 .
Darran