This may help a bit:
I’m not trying to show off stuff in my collection, but I think examples are needed. I took all these photos myself of yoyos I own.
The entire yoyo feels blasted. Comfortable, good shape, good grinder. Designed to play at any speed, go horizontal and stay dead stable on whatever axis you want to throw it. We’re talking CLYW Chief performance at just under 50% of the price. Three words: blow your mind!
Too bad these aren’t in production anymore. This is a player’s dream yoyo.
Essentially a Freq.Wave with the STAX axle system. HOWEVER: the surface is SMOOTH, and as such, not a nice grinding yoyo. At least, not this particular model.
RecRev f(x): This is a third run, or an A-grade. The 2nd run B-grades look the same. The 1st run were all B-grades and look more “rough”. Mine is relatively smooth. Again, this is an A-grade.
This is essentially a delrin Freq.Wav or “@”, but with no center hub, it goes nicely for horizontal play, but gyro grinds aren’t the best due to the axle system, which is true in many delrin yoyos, including the Halo by C3.
I know this wasn’t a model of interest, but at $50, it’s an item to consider. If I was a competitor, I’d buy 3 more!
For comparisons, the 1st Run, which again, is a B-grade:
$30 or so. Just amazing if you can tune the vibe out. Delrin grinds like mad!!
RecRev Sine//Saw, 1 of 2:
The etched part in the middle is the grindable area. The rest of the yoyo is SMOOTH!
Compare with this one:
The entire yoyo feels blasted before the amazing graphics were added. I bought this one just because it looked so amazing.
The purpose of the Sine//saw was a slightly smaller yoyo that was slightly lighter in order to have a faster yoyo for competition, or whatever purpose you want it for.
Another option to consider is the Silly Goose, which is a touch more center-weighted. It doesn’t slow it down much, still is floaty, and with more center-weight, it becomes very responsive to being steered, so it’s very agile. This is NOT a good example because it’s nickel, but I love shiny metal objects, and you can see how closely related to the Sine//saw it is:
Can’t grind very well on nickel, but it sure is a looker, isn’t it? And it plays as amazing as it looks.
As compared to this, using the fancy anodizing or whatever it is:
Haven’t even put a string it, but it sure is pretty, isn’t it? And it grinds like a beast!
Lastly, the OG Octave re-issue:
No question, this is a slightly older shape. No IRG ring, but you can do the grind if you knock the yoyo off a completely parallel axis. Nearly all RecRevs are like that though, and honestly, I rarely see anyone do thumb grinds, especially in contests. Despite the older shape, it’s still right up there with anything modern. The float is amazing, it just seems to hang in mid-air, letting you really control the string tension and slack(within the confines of physics, of course!), yet still lets you push that yoyo as fast and as hard as you want it.
Regardless of what you choose, RecRev does NOT make a large number of yoyos, so you’ll have to dive in hard and fast.
Now: the Capless:
You can see it’s feature site quite nice here.
Compare that with the Firmy, which is a bit more aggressive in the shape:
We’re seeing very similar shapes on the INSIDE, but the weight is different as well as the rim’s outer design.
This is a better shot set of shots:
I hope this answers more questions. Sorry if I slowed down your internet connection to a crawl!