# Side effects

**URL:** https://forums.yoyoexpert.com/t/side-effects/83533
**Category:** General Yo-Yo
**Created:** [March 20, 2017, 4:29am UTC](https://forums.yoyoexpert.com/t/side-effects/83533 "2017-03-20T04:29:18Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![SteveOnDrums](https://avatars.discourse-cdn.com/v4/letter/s/9de0a6/32.png) [@SteveOnDrums](https://forums.yoyoexpert.com/u/SteveOnDrums)
#### Post date: [March 20, 2017, 4:29am UTC](https://forums.yoyoexpert.com/t/side-effects/83533/1 "2017-03-20T04:29:18Z")

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So… Am I the only one that, when I first saw the concept of side effects, thought they acted like yoyofactory hubs, and spun freely from the yo-yo?

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### Author: ![Morgoroth](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/morgoroth/32/795_2.png) [@Morgoroth](https://forums.yoyoexpert.com/u/Morgoroth)
#### Post date: [March 20, 2017, 1:10pm UTC](https://forums.yoyoexpert.com/t/side-effects/83533/2 "2017-03-20T13:10:21Z")

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No. Next question!

😃 I was very confused about what hubstacks and side effects were when I started.  
Once I saw them first hand it made perfect sense.

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### Author: ![Cannon](https://avatars.discourse-cdn.com/v4/letter/c/919ad9/32.png) [@Cannon](https://forums.yoyoexpert.com/u/Cannon)
#### Post date: [March 20, 2017, 1:21pm UTC](https://forums.yoyoexpert.com/t/side-effects/83533/3 "2017-03-20T13:21:21Z")

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I used to use the se spikes for “hubstacks” (matador).

I was super confused the first time I saw them too. After I saw someone take them out and the such, it made a lot of sense.