If its all about making money then however you manage it , so long as you do manage it, without causing anyone serious problems, could be regarded as OK, I guess. If you take your time charging high prices getting good money for little effort and few jobs, then thats one way, or if it siutes you to charge low prices, rushing round, or not rushing but being very quick, by taking all the shortcuts there are, but keeping the customer satified, price/quality wise, then that another way. Its all in the culture of how you are and how you prefer to actually do the job, whichever way, so long as YOUR customers are happy with YOUR standard of work at your price, so long as you end up every week, reaching your target.
Dave.