The BOSS and 888 are similar yoyos. They have the same shape, but the BOSS has a slightly more noticable H shape and has no stacks, but is cheaper. The Atmosphere is somewhat different from these two. It is also rounded, but a different shape to it, as well as metal rims instead of being all metal.
These are questions everyone should be asking you before giving a ounce of advice. It bothers me to see people just rattle off something with out even knowing what the original poster is looking for.
I love certain yoyos to, but how can you recommend or help someone when you have no idea what they want. Your not really helping them at all, your just shooting off what your current favorite is.
He wants round with flat rims… Looking at the pictures the rims on the BOSS are kinda flat-ish but still a little round… And H-haped where the Atmosphere is round with very flat rims and well I kinda say rull out the 888 too because its got a very minor H and kind of flared…