yawn...... another smarty junky. anyways ive owned both but i never used the hot. smarty is the best programmer ive tried on my truck so far but i havnt tried the ppe hot but back when i was shopping around they didnt have a ppe hot 4 my truck. ppe has way more records then smarty dos on the track. but smarty has more truck making bigger numbers on the dyno. depends on what you want, but last i looked i didnt see an ppe hot for our 06 years. so you might look into a smarty.