Kickstarts ruin your lipids right at the start of a longer run, which don’t recover until off blast, so you spend a lot more time driving atherosclerosis.
The other consideration is you need the least gear at the start of a course of exposure. Kickstarters flatten the curve, getting levels up fast and then leveling out the whole way. Where if you start with a long ester that builds over coming weeks, you get a natural taper up as the body naturally needs more to keep responding. Then you can add something on the back end of the cycle to continue escalating dose to keep the gains coming.
You never want a kickstart if muscle growth is the point of the steroid cycle. You want a finisher.
Kickstarters are for someone with an extremely short timeline, and then it’s just really all out from the get go. Like if you had 6 weeks to jack size and strength up, you might just take an oral and fast ester the whole time. But that’s not an ideal scenario at all, because lasting muscle takes time to build. More like someone just found out about a strongman competition so they add something Anadrol and Prop.