First, remember this: There is nothing in common between propane and Natural gas, except that they are both gases. After that it is like comparing diesel to gasoline. Propane is a high pressure gas, natural gas is low pressure.
1. unless you have a commercial size natural gas hook up, you will never be able to use the 44 jets. It will burn dirty yellow, and it will actually produce less BTU's.
2. I thought the same thing when I purchased my 32 jet burner, It was terrible. You will end up plugging off the jets, eventually I found that only 6 jets (all pointed at each other was the best solution) for high heat, and low heat.
3. Bobby_M has a great tutorial on here, where he has a 23 tip burner, where he plugged up 13 jets, to make it a 10 tip burner.
4. For 10 gallon boils with this type of burner design I would recommend one of these: 10 Jet Natural Gas Jet Burner
Hope this helps.