FYI       I'm  MDI  .......   went to get a pump this past year   .....   "specialists" could not figure out ratios even though I had my thoughts written down,  basal was easier to get a approximate figure for than the bolus. Since I go from high activity levels to doing nothing within a few hours they could not come up with a start point for a pump.   I've since given up on a pump.   For those on the pump     congratulations  ......  you will all say that my scenario has been figured out  numerous times  .....  more than likely has!!