everybody learns at different speeds, to me, training is about confidence, if your not confident, do a course, if your still not confident do it again, (possible with a different teacher)
it took me 2 goes to get carpet cleaning, after the prochem course i decided to do the ncca, that was enough to give me the confidence, ive done the cleansmart upholstery but am still not totally confident and therefore feel i will benefit from redoing the course or one similar.
i did the iicrc leather cleaning, and then went on to do the ltt4 day resto and cleaning, and believe it or not, i learnt even more about cleaning leather.
i feel i don,t need any more cc training as i learn the bits and bobs from guys on here and pick up tips from everyday work.
however i would like to learn about odour control and elimination, so if i can find a course for that i'll be there.
thats my view on training. when you know what your doing and your confident, then you don't need anymore in that particular field. but then theres the likes of rug cleaning, curtains, flood, crime scene etc...
thers always some training that can advance you further in this profession / trade / poor excuse for a job, (whatever you wanna call it) you just need to choose wisely and then exploit it to your benefit.
hope this helps.
derek