Rossi Pow Ski: Sickle or S7

I can currently get a great deal on some Rossi skis, and I've narrowed it down to these two (since the super 7 and squad 7 don't come in a small enough size for me).

I'm about 5'8", 140, so I would get the 178 S7 or the 181 Sickle.

This ski will be in pow about 95% of the time--from tree skiing, to some medium sized cliffs, to maybe building some bc jumps.

The Sickle seems like it would be great for jumps, just because its nearly symmetrical design would make switch landings easier. The only 2 things that keep me from deciding on the Sickle are the tiny amount of rocker (although it's full tip-to-tail), and the fact that the 141-111-133 sidecut seems a bit thin for a pow ski. The 145-115-123 on the S7 isn't that much wider, but the more dramatic rocker in the tip and tail makes me think they might float significantly better than the Sickle.

Those who have skied the Sickle: Does it float well enough with such a small amount of rocker?

Those who have skied the S7: Do you find riding switch in pow difficult with the thinner tail?


Thanks!
As always, +k to good responses.