even if you use the most finnesse and evil eye you have setting points on these,the strobe will show up a shortfall which will be so obvious,more so these days i think to the low quality points available now,if its static timed accuratley it will run,,and run well,the strobe light gets it just that little bit more perfect,the hardest thing is marrying up the timing between 1/4 and 2/3,,youll have the gap or dwell correct but still the "sync"between the pairs can be a mongrel to set,you can be sloppy with low rpm engines in this reguard but these little engines spin fast and the less the pair of cylinders fight or lag the better,it results in a smoother running engine that is easier to vacuum sync,giving rise to a better riding experience.