Its a Singular with an EBB or would I be better off with a qr?
If you've already got the bolt-up version just stick with it - bit more of a faff to remove but nice and secure/stiff.
bolt on ok on my Swift here after a year or so
All fine on mine for a year now. It is worth checking the bolts as I find the need a bit of settle time after each wheel removal.
Changed my bolt up adaptors for Qr less faf and £10 but obviously not as stiff.
Rear axle stiffness is noticeable on a hardtail?
I changed to QR endcaps on mine, had them in the toolbox from an axle swap on the DH wheels so seemed silly not to, didnt need it for stiffness, anti-theft, or to stop the wheel slipping in the dropouts. Why go bolt-up if you dont need it*?
*if you already have bolt-up and it donst bother you then no need to change for change sake.