The steel ones have a tapered outer edge so they’re easier to remove and less likely to get stuck in the yoyo.
Unless you’re planning to use your Ghost IX for 4A I don’t see much of a reason to buy extra spacers, but if they’d give you extra peace of mind, then just order the thickest option. Anything thinner will make your yoyo play responsive/extremely snaggy, because you’ll be going down to a 2-3mm gap width compared to the 4mm+ gaps of modern unresponsive yoyos.
I would only go for any other option as blue if you like thin string. I have one setup with very thin iYoyo slackies. The smaller gap works great especially for any air binds but if you use any “normal“ string stick to blue.
I usually use fat string. Sochi Phoenix, P44 medium, and kitty fat. I do not do 4a at all. So blue or steel thick it is. Right? Also, since spacers are impossible to get in europe (gonna make a special order this time), I would like to have some spare ones just in case cause a direct order from china would have huge shipping costs.
I am also in Europe and normally order from iYoyo but I mostly use iYoyo for 4A. Maybe you can send them a mail and check if they are compatible. If you use thick string definitely use the thick spacers. And if you do not like the response better adjust the pads to something softer or harder.
I am in contact with another retailer from Austria. The picture above is the one they send me in order to make up my mind. In general I prefer medium to medium snappy response. Since this is a particularly wide yoyo, i thought I 'd ask the gang first.
Yes preferences are different for sure. I just think spacers are more for 4A where you really want to fine tune. But give it a try and let us know what you like for 5A.
Just an idea if you have an half spec bearing you can try how you like it. These you can normally order cheap in every country for an euro on eBay or something comparable (Part name R188-2RS)
I have a flat bearing Not in use since 18 months. I dropped responsive and never looked back. The bearing was not that impressive to begin with. (Sage yoyo). So nah…