A little more to the original topic...something to consider in setting rates and bidding is your level of experience and quality of tools. If I used to work with a hacksaw and took hours to troubleshoot...and now use a metal saw and take minutes to troubleshoot, I need to adjust my rates accordingly. That's one of the major reasons for bidding jobs rather than doing them T&M.

If your rate stays the same and your experience increases (and production increases), you're making LESS MONEY.

Dave