# The 0A Thread (Fixed Axle & Modern Responsive)

**URL:** https://forums.yoyoexpert.com/t/the-0a-thread-fixed-axle-modern-responsive/304228
**Category:** General Yo-Yo
**Created:** [June 20, 2019, 3:36pm UTC](https://forums.yoyoexpert.com/t/the-0a-thread-fixed-axle-modern-responsive/304228 "2019-06-20T15:36:00Z")
**Posts on this page:** 1
**Showing post:** 2901

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### Author: ![TryCatchThrow](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/trycatchthrow/32/171307_2.png) [@TryCatchThrow](https://forums.yoyoexpert.com/u/TryCatchThrow)
#### Post date: [February 24, 2025, 6:02pm UTC](https://forums.yoyoexpert.com/t/the-0a-thread-fixed-axle-modern-responsive/304228/2901 "2025-02-24T18:02:57Z")

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Lot to unpack here.

Older Butteflies are great but the new mold ones are **AMAZING**. I highly recommend finding one. Check here if you need help identifying them:

> [@An unofficial guide to identifying the new Duncan Butterflies](https://forums.yoyoexpert.com/t/an-unofficial-guide-to-identifying-the-new-duncan-butterflies/365957):
>
> Hi all, there has been excitement surrounding the new Duncan Butterflies that are made with the updated mould. I feel this excitement is warranted because the new butterflies are great. They aren’t just great for the price, they are actually really great fixed-axle yoyos. I personally was not a fan of the previous Butterfly version, but I really like this new one. These seem to have been rolling out gradually for the past little while, so you may find some in a store near you. I found mine in a…

For string I prefer poly. I use whatever poly I have on hand. Right now it’s OTS Normal, in the past it’s been Kitty Fat, Kitty Normal, and Alphaline.

I do not find that I need to change the string after a few hours of play usually. I also play 2A and there are some 2A players that will change strings after a half hour of play 😃

I would recommend trying a different poly. I prefer poly on steel axles over cotton.

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