[General Scales]

If you get a River, keep in mind these few tips to get what you want:

1.) With Latitude, they have big differences run to run. Some runs are super domey, some moderately domey and some super flat. The super domey have the most glide but are the least high speed stable. The super flat are the most high speed stable but have the least glide. I like the flat and moderate dome versions.
2.) A heavier weight Opto will always be more overstable then the same weight Gold line version.
3.) Latitude is usually off in their weight by at least a half gram down. If it says 173, it's probably 172.5 or lighter.
4.) If buying Opto, there are really clear and really opaque versions. The really clear versions are generally ultra stiff and domey. The really opaque versions are generally flat and flexible. I have a Striker that is really opaque (I call it GLOpto plastic) and is flatter then an ironing board. It's super flexible and leaves fingerprints on the plastic where I put my thumb. It's almost like the legendary candy plastic (later run CE from Innova).
5.) If buying Gold Line, there are solid color, marbled color and color shift versions. I like the look of the marbled stuff but the solid color is usually more true to it's stated flight characteristic. The color shift Gold Line is harder to come by and is super sexy to see fly. Not too much experience from me in throwing the color shift stuff yet.
6.) Finding lighter weights (165 and lighter) can be a challenge. The lightest River I've seen was 162 and sold for 25 bucks because it's so hard to find the stuff that light. Most places have 168 as the lightest option.
7.) Have fun becoming addicted to Swedish plastic!