I believe that you'll be shocked at the improvement that a few inches make, Paul. Just try to get the straightest handle that you can - the one shown is OK - but I'd certainly feel happier with a straighter one. If 24" is the size you can get - well it's a bit longer than is needed for easy carry, but it'll certainly work. I have a 1 3/4lb head on a 36" handle for teaching kids so they can't hit feet, and I often use it for taking down small leaning trees.
Once the head is off - that's the best time to work on the head to get the ramp up the eye as smooth as possible. That Hults was left with label etc so I could work in stages. You'll find working on the cutting bevels easier with the handle on. Notice the paint on the wood, where it's worn off the eye - and the wider cutting bevel on the axe.
Anyway - while a light axe still has to be used with a baton for splitting tough stuff, the experiments on polishing the ramp sure paid off - and have gone a lot further.
Most handles now are pretty clubby and junky. Try for as vertical a grain as you can get. Painted or varnished handles are a good sign that the wood is not fully seasoned. I use a propane torch and scrape the varnish off. If the handle still feels heavy then a light coat of linseed oil will slow drying and prevent cracks. I use a knife to scrape down the handle a little at a time every time I go out - until I end up with a slim handle. Great tinder too.
So if the axe doesn't feel well balanced at first - it's probably just because of the clubby and heavy handle - don't despair - just give it time and work...
When I have what I want, I sand the handle and scorch it with a propane torch, then finish with boiled linseed or tung oil. This gives a secure grip when wet and doesn't cause blisters like varnish.
I like a smooth finish, but some prefer a more secure grip as on the Gransfors hunter's axe. Surprisingly scraping can provide that. It's hard to see the rounded "ribbing" running at 90 degrees to the length of the handle - but maybe you can make it out.