it's for everyone, that's for sure...
i can't speak for anyone but us. Our resi guys, that work almost strictly flat rate, are paid with a base salary and commission.
If they generate $300k gross for the year (with an average of 13%) in material, they earn about $75k in the wallet. Their total package is over $100,000 with benefits, truck, cell phone, etc.
They work an average of 40 hrs, very little nights and weekends (that is just us, there are other outfits that work their guys 70-80 hrs/week)
but they work hard when they work. They don't take 10 coffee breaks, or 1 hr lunches, or really waste time.
They know that if they get a job done in 4 hrs instead of 5, they make the same money.
Sure there are worries of guys price gouging, or cutting corners, etc...but you have that with T&M shops too. How many T&M guys will install used parts and charge for new? How many T&M guys will milk a job because they don't have another one lined up?
When you pay someone commission, they earn what they are worth. If they screw up and have call backs, it comes out of their pockets (for the record, we pay them their base hourly for a call back, but the commission they made now gets chewed up) If they are efficient, they earn well. If they are really good, the customers with request and refer specific guys..
If you simply want to put in your time and collect your check, it's not the way to go.
One of the biggest downfalls to paying hourly is being equitable to all involved. It's very frustrating to a good producer that he is making the same hourly rate as the slacker. Or maybe he's making a few $ an hour more, but not $500/week more.
Or worse yet, you have two guys...one produces, one slacks..what happens? The slacker takes 8 hrs to do 5 hrs worth of work. The producer takes 4 hrs to do 5 hrs worth of estimated work...what's his reward? another job that day. More work. For the same pay as the slacker.
Whichever route you go you run the risk of problems...it all depends on your personality and the course of action you want to take...
good luck