# Successful Mod of a Duncan Turbo Bumble Bee GT
**URL:** https://forums.yoyoexpert.com/t/successful-mod-of-a-duncan-turbo-bumble-bee-gt/58589
**Category:** Yo-Yo Mods and Maintenance
**Created:** [August 30, 2013, 3:52pm UTC](https://forums.yoyoexpert.com/t/successful-mod-of-a-duncan-turbo-bumble-bee-gt/58589 "2013-08-30T15:52:21Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@SwissArmyTenor](https://forums.yoyoexpert.com/u/SwissArmyTenor)
#### Post date: [August 30, 2013, 3:52pm UTC](https://forums.yoyoexpert.com/t/successful-mod-of-a-duncan-turbo-bumble-bee-gt/58589/1 "2013-08-30T15:52:21Z")
I’m a tinkerer, by nature, and when I get a throw that I like the look of, but it doesn’t perform as well as I would like, I’ve just got to mess with it ;D
At the suggestion of another member, I made kind of a database of my yoyos, and their bearing sizes. I had a FAST 201, and thought I would exchange works in them and see what happened.
At first it didn’t look like it was going to work. I tried at first to just exchange the bearings, and the FAST’s axle o-rings into the TBB GT. Didn’t work, as the o-rings spread things out so far that I couldn’t screw the halves back together.
Then I compared the spacers - the FAST’s spacers were thinner than the TBB GT’s spacers, so I traded those out, as well. It took some firm pressure, but with the new spacers and the o-rings, the TBB GT is not only a better player, the o-rings make the string gap fairly adjustable. Really plays well now.
I’ve now also got a FAST 201 that’s pretty stinkin’ unresponsive! 🙂
---
### Author:  [@n01mportant](https://forums.yoyoexpert.com/u/n01mportant)
#### Post date: [August 30, 2013, 7:55pm UTC](https://forums.yoyoexpert.com/t/successful-mod-of-a-duncan-turbo-bumble-bee-gt/58589/2 "2013-08-30T19:55:43Z")
Get some duncan mod spacers! 🙂
---
### Author:  [@SwissArmyTenor](https://forums.yoyoexpert.com/u/SwissArmyTenor)
#### Post date: [August 30, 2013, 10:15pm UTC](https://forums.yoyoexpert.com/t/successful-mod-of-a-duncan-turbo-bumble-bee-gt/58589/3 "2013-08-30T22:15:54Z")
Thanks - I’m back after a 10-12 year lay-off so there’s lots of stuff I need to get back up to speed on.
Appreciate the tip -
EDIT:
Looked at the spacers. My Bumble Bee GT is already a butterfly, but I noted some butterflys in the group of yoyos that the spacers will work with. The Bumble Bee GT is not mentioned, but it might be worth gambling $4.50 to see if it would work. If not, would on another.
---
### Author:  [@n01mportant](https://forums.yoyoexpert.com/u/n01mportant)
#### Post date: [August 31, 2013, 12:52am UTC](https://forums.yoyoexpert.com/t/successful-mod-of-a-duncan-turbo-bumble-bee-gt/58589/4 "2013-08-31T00:52:12Z")
Yeah it’s hit and miss if they aren’t specifically mentioned, but it’s worth picking them up; I got both sizes just in case I get a notion in the future.
---
### Author:  [@Midlifeyoyoman](https://forums.yoyoexpert.com/u/Midlifeyoyoman)
#### Post date: [August 31, 2013, 5:34am UTC](https://forums.yoyoexpert.com/t/successful-mod-of-a-duncan-turbo-bumble-bee-gt/58589/5 "2013-08-31T05:34:09Z")
Welcome back to what I assume is line another world of yoyos! Hope you enjoy this go around more way will experience all the new tech/goodies this hobby has advanced to while you were gone.
---
### Author:  [@yooldman](https://forums.yoyoexpert.com/u/yooldman)
#### Post date: [August 31, 2013, 6:41am UTC](https://forums.yoyoexpert.com/t/successful-mod-of-a-duncan-turbo-bumble-bee-gt/58589/6 "2013-08-31T06:41:13Z")
> [@SwissArmyTenor](#):
>
> Thanks - I’m back after a 10-12 year lay-off so there’s lots of stuff I need to get back up to speed on.
>
> Appreciate the tip -
>
> EDIT:
>
> Looked at the spacers. My Bumble Bee GT is already a butterfly, but I noted some butterflys in the group of yoyos that the spacers will work with. The Bumble Bee GT is not mentioned, but it might be worth gambling $4.50 to see if it would work. If not, would on another.
The Bee GT is the same yoyo as the Dragonfly. Mod spacers should work fine.