I am the business owner and one of the installers for my company, so i am on every job sceen, because I believe in the job being done right the first time, and a high quality job. Therefore being fast is not always a good idea, which may create more hassle down the line. An incentive for installers pay, in my opinion, would be there knowledge base, and how well the job is done. As long as installers know the basics and how quality work is to be done speed will come naturally. Bottom line, pay for quality not quantity in this business.