The evolution guide (slimes included)

[Kesa]

One more question, let's say I want to get the legendary slime from two epic 4* (not perfect slime)

Do I need to evolv these epic slimes in the same way as if I improved the heroes, so that this slime is not worse than the legendary slime that I already have
I.e, ((1 * + 1 *) + (1 * + 1 *)) + ((1 * + 1 *) + (1 * + 1 *)) + ((1 * + 1 *) + (1 * + 1 *)) + ((1 * + 1 *) + (1 * + 1 *)) (all slimes lvl 100)

or so enough (((1 * + 1 *) + 1 *) + 1 *) + (((1 * + 1 *) + 1 *) + 1 *) (all slimes lvl 1), and after evolution, this slime will be the same as other legendary slimes?