Can you post a video?
Try this:
Load the XCub.
Load a 90deg left crosswind. To be clear, if you’re taking off runway 03, have the wind at 300 for example.
Select a mild 6kt wind.
Now line up on the centerline and record your entire run from a stand still to 100ft agl. You should easily be on centreline the entire way.
As well, I’m assuming you are using pedals.
I believe you can do it but I want to see it first before I pick your brain on how you do it haha. Again to be clear, that spinner should be glued to the centreline for 100% of the roll. I look forward to you sharing the video.
edit please don’t forget to show you loading the proper wind. This is a friction/weathervaning issue so I need to see the crosswind I specified. Thanks