It depends what time of job you do. I only ever installed it for one contract which was the only hourly contract I ever did. The requirements of the project wer

It depends what time of job you do. I only ever installed it for one contract which was the only hourly contract I ever did. The requirements of the project were regularly changing and there were no minimum/maximum number of hours (the job went for about 16 months). Given there was no max hours and the hourly rate was high it seemed fair to me.