the functionality of the ini file with Kissassist doesn't change as you level. You simply need to update the spells, skills, and aa's as you level up so that they're included in your KA routines. The resources page on the forums also has some pre-built ones depending on your class/level. Most folks post updated pre-builts at intervals of 5 levels, with the most detailed and involved ones in the 100-110 (soon to be 115) range. If you're doing lower level content and simply want a plug and play solution for 1-70 the pre-builts can be handy if you don't want to figure out what spells to load, what skills to use, or what trigger points to use. Just buy your spells, find an ini for your level, or really close, and run with it.