# Duncan butterfly al with delrin cap thoughts. Who has one

**URL:** <https://forums.yoyoexpert.com/t/duncan-butterfly-al-with-delrin-cap-thoughts-who-has-one/449284>\
**Category:** General Yo-Yo\
**Created:** [July 19, 2026, 7:02am UTC](https://forums.yoyoexpert.com/t/duncan-butterfly-al-with-delrin-cap-thoughts-who-has-one/449284 "2026-07-19T07:02:07Z")\
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**Author:** ![Exmime](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/exmime/32/40143_2.png) [@Exmime](https://forums.yoyoexpert.com/u/Exmime)\
**Post date:** [July 19, 2026, 1:34pm UTC](https://forums.yoyoexpert.com/t/duncan-butterfly-al-with-delrin-cap-thoughts-who-has-one/449284/4 "2026-07-19T13:34:00Z")

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I wouldn’t recommend AL Butterflys to beginners as they are finicky with set up, a lot of threads on this if you search. The 2023 AL version actually plays really good without the caps, but these caps are known to warp and you might not have a choice. If you tinker you can get them to remain flat and stay on. The Weekender and Confusion series are just better A bearing players in this category.

> [@2023 Aluminum Butterfly](https://forums.yoyoexpert.com/t/2023-aluminum-butterfly/367465/43):
>
> Sucked the caps off, here is a look under the hood, 50 grams without. However they are also 50mm which means they are just bigger than the 48mm Freehand caps. @bjardin Throw Duncan!

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