i have a 158, i weighed 175-180 at the end of the season, and it seemed like i could weigh way more and still be fine on the board. it almost seemed too big at first, but i was riding on a smaller mountain with narrow trails/trees, and i was used to a park board. the effective edge is pretty long for the overall length of the board, so i think you'll be fine there. the only thing i would worry about is the torsional flex in the middle of the board. if you're not railing carves going mach speeds, i think you'll be totally fine on it. it's definitely not too flexy overall, and the carbon outside the bindings makes it pretty stable, so i don't think your nose or tail are gonna be too sloppy on you.
don't take my word only though, just offering my limited advice as i have the board.
Well, I'm coming from am '07 K2 Union 164w, full camber park board, way too big. I was thinking of the 161 SL, and I can't believe 3cm is really going to make that much difference. It's still going to be light years ahead of what I ride now... which i get up to 50mph on my gps (which I know everyone hates, but it's a relative number).
Epic, gimme a couple days, let me mull it over, and if you still have it, I'll PM you.
Might want to ask around to see if anyone over 200lbs has experience with it. The Never Summer size chart says the SL 158 is ideal for 125-175lbs but I know people use boards that they fall outside the weight range for.
Discussed multiple times on this forum - that chart is made by Evo and, at least in past iterations, has some pretty ludicrous and nonsensical 'information'.
Never Summer does not have a size chart and actually actively discourages such charts.
this is true - if i'm correct, i believe the size for NS boards is more relative to stiffness, so maybe with this in mind... if you wanted a more playful board, get the 158, if you only wanna blaze down shit super fast, get the 161.