# Wood-z response / string replacement (fixed axle strings and response in general)

**URL:** <https://forums.yoyoexpert.com/t/wood-z-response-string-replacement-fixed-axle-strings-and-response-in-general/343858>\
**Category:** Yo-Yo Mods and Maintenance\
**Created:** [August 28, 2021, 8:03am UTC](https://forums.yoyoexpert.com/t/wood-z-response-string-replacement-fixed-axle-strings-and-response-in-general/343858 "2021-08-28T08:03:07Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Lido](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/lido/32/173650_2.png) [@Lido](https://forums.yoyoexpert.com/u/Lido)\
**Post date:** [August 28, 2021, 8:03am UTC](https://forums.yoyoexpert.com/t/wood-z-response-string-replacement-fixed-axle-strings-and-response-in-general/343858/1 "2021-08-28T08:03:07Z")

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![IMG_4264](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/5/0/d/50dceef508cebded36275f82fdfe569a3e3c5cda.jpeg)

I’ve been using my Wood-z for about an hour a night for the week or so since I got it and tonight I noticed that the response isn’t really grabbing much or nearly as well as it was (regardless of the string tension). Is it possible the string (Zipline Kott’n) is worn out already? It looks fine to me. Should I try some Burts Bees in the axle loop? Thanks!

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**Author:** ![anon5341354](https://avatars.discourse-cdn.com/v4/letter/a/3ab097/32.png) [@anon5341354](https://forums.yoyoexpert.com/u/anon5341354)\
**Post date:** [August 28, 2021, 1:37pm UTC](https://forums.yoyoexpert.com/t/wood-z-response-string-replacement-fixed-axle-strings-and-response-in-general/343858/2 "2021-08-28T13:37:20Z")

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If it were me, I’d try rubbing some 120 grit sandpaper on the inside walls of the axle, but not the axle itself.

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<div class="post-metadata">

**Author:** ![Lido](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/lido/32/173650_2.png) [@Lido](https://forums.yoyoexpert.com/u/Lido)\
**Post date:** [August 28, 2021, 5:44pm UTC](https://forums.yoyoexpert.com/t/wood-z-response-string-replacement-fixed-axle-strings-and-response-in-general/343858/3 "2021-08-28T17:44:12Z")

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Thanks Glen. So sand the walls around the axle on the dark color threaded plug or sand the maple walls?

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<div class="post-metadata">

**Author:** ![anon5341354](https://avatars.discourse-cdn.com/v4/letter/a/3ab097/32.png) [@anon5341354](https://forums.yoyoexpert.com/u/anon5341354)\
**Post date:** [August 28, 2021, 9:39pm UTC](https://forums.yoyoexpert.com/t/wood-z-response-string-replacement-fixed-axle-strings-and-response-in-general/343858/4 "2021-08-28T21:39:32Z")

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I wouldn’t sand the maple walls, just the inside where the axle is.

Do not sand much though because you are effectively widening the gap. Just lightly.

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<div class="post-metadata">

**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:** [August 28, 2021, 9:57pm UTC](https://forums.yoyoexpert.com/t/wood-z-response-string-replacement-fixed-axle-strings-and-response-in-general/343858/5 "2021-08-28T21:57:58Z")

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> [@anon5341354](#):
>
> Do not sand much though

@Lido You just want to make the inner wall of the walnut rough, you don’t want to loose material. I typically just use a finger nail file with a couple of passes.