Reddit reviews Bahco Hatchet Fibreglass Handle Hfgps 1000G

Fiberglass have more flex indeed.
Infact on my chopping axe i use wood handles because the hit is better and stronger, but the chopping axe handle is 3 feet long. On a throwing axe handle, less than 20 inches, the difference in flexing is not even noticeable.

If you like the shape, in the US you can find the Bacho model,it's almost identical but much more expensive than mine.