Well i dont think on demand is better,because it demands more extreme wattage values than cruise,which is easier on the battery IMO,because of the heatsoaking. At some point after beiing some time in cruise mode, there is no difference between it and on demand ,but from cold start,cruise is better option for me. . Also holding the button vs just clicking it twice at least for me is more carefree experience . I already proposed this,i will repeat myself. Turn on cruise cycle to 250 C and after 15-20 seconds cycle back to the desired temp,take a hit and if you like you can go on demand for the next one. FJ once said. HOT TUBO = Good TUBO !