We are interested in knowing some of the pros' and cons' of contract type selection when considering a fixed price or a labor hour type contract using a GSA Schedule Contract Example: We have mail room contractors working to service our buildings mail distribution, postage processing, delivery (within building), and mail pickup. We created a Statement of Work that includes all the required duties and responsibility. The mail clerks know what is expected and do not need to be supervised. We estimated the amount of hours each contractor must work. We have used a GSA Schedule Contract and the associate fixed price hourly rate. We know how much each contractor will cost on a weekly, monthly, and annual bases. Since we have an accurate cost estimate we created a multiple year (5), fixed price contract. We are now wondering if we should have used a labor hour contract type as a better fit. Thank you for any information, ideas, or suggestions.;