[canuckintime]

It’s bigger; that might be the fix in and of itself

[hn8726]

A big problem is not length but width. I've 3d printed a _pad_ for solo joycon and the difference is day and night

[xnx]

Don't the attachable rails help the width (or did you mean thickness)?

[oneeyedpigeon]

Attaching the grips helps a lot with that.