Does the YYJ speeder have its caps removable ?
Is thumb Grinding Trick possible with it ? .
Is it an unresponsive yoyo for unresponsive play ?
I am willing to buy it but i am confused about the writtin above.
Need help 
.
Yes
yes
and it might need some gap adjustment and/or breaking in but… yes
or if u want a good yoyo for thumb grids and grinds pick up a metal like yoyo factory affordable yoyos or a new breed