The Slim provides a variety of settings to allow you to experiment with various blade combinations with one razor. This is my go to razor due to its slimmer head (hence the name) which allows for greater maneuverability around various areas which helps with things such as head shaving.
Of the DE razors I have here is my preference.
5. Tech* (Silver Star)
But any of these is a good choice so you can't lose.
Good fortune in your selection.
Losing my grip on reality while gaining a grip on my razors. BOTOC, LOSER and OGA member.
Mercy unto you, and peace, and love, be multiplied (Jude verse 2).