Does anyone know of a flatish bar, about 650 mm wide with a 10 degree sweep?

I always find that the bars on my hybrid could do slightly more sweep. I’ve tried different positions for my current 9 degree sweep bar, different length stems and some Ergon ga2 grips all of which have made no difference or made it worse. I always end up with pain on the outer side my palm (behind my pinkies). Oddly it’s worse on my left hand but I guess that’s just natural variation in my body.

Using nunchucks, a 1 metre rule and cardboard I’ve concluded I need slightly more sweep.

I’ve been trawling the usual bike shops but can’t find any other than 9 degrees for narrower bars.

Wide bars and a hacksaw?

Ergotec at 620 wide from SJS.
https://www.sjscycles.co.uk/handlebars/black-humpert-riser-handlebars-254mm-clamp-620mm/

Worth looking through all their bar pages as they have most choices of sweep. Flat, riser or odd styles.