If I am trying to smooth out a hit, I look at three possibilities approaches the bud, hardware or me. Bud that is not well cured is often harsh, and some strains just have more bite, etc. Next there is the hardware; obviously some vapes just hit hotter and/or harder than others, and some folks have spent the time, money and effort to add and maintain the desired amount of cooling and filtration enhancements that compliment their vapes function. On the other end of the continuum is the minimalist approach with just the vape, a stem (most times) and the user. Being a lazy guy (less cleaning) and having cut my smoking teeth on cigarettes joints and pipes, this is my preference. The bud, vape and supporting hardware are all controlled and judged by the user who can be the factor contributing the most variables. If I can produce repeatable baseline results, then selecting changes in bud, hardware and technique are easier to manage. Sadly, if I am not careful, I tend to make a bunch of changes all at once, which makes it harder to sort out the good, bad and irrelevant choices. Going slowly and noting the changes can add up to the best hits in many cases.