Once You!
Get used to it, I think you might like it, I have never had a problem with having only 5 heats, mainly because they are exactly the same every time, and you soon learn how to adjust for each cooking operation, for example, when canning, you start on high, when the pressure guage got to 8 lbs, I turned it down to "Third" which is medium on a GE, usually the pressure would go to 10 lbs and stay there, with an infinite heat you are constantly fiddling with the control becauce it is cycling , not providing steady heat.