i have used both, and I have seen a big difference, if you can, stay with jet A. i started out this year with jet A, i ran out of jet A and the airport was closed , so i went to the local gas station and got kerosene. the only difference i have seen ,was on the start ups, i have not seen any difference in the air. the starts with jet A seem to be smooth, when i run kerosene, it seems to kind of spit and kind of cough a little on the starts, NOT smooth, but again, with jet A very smooth starts.

mark