garry3 - yes, mostly woodworking. Thanks for the tips on weight and cheeks.
square_peg - thanks for the tip about using a narrow bit for hardwood
ernest, - only the broad axe is left bevel. The GB carving is right bevel and everything else is dual bevel. I use the large Swedish carving axe for precise, yet large stock removal. Mostly in log construction joints, but also in other stock removal where the GB carging axe would take too many strikes. I'm still learning how to use it, but I do like it very much. I was going to pickup a GB scanadavian felling axe, but I am not averse to north american design.
jpeeler - the broad axe is a nicely shaped/weighted bit, but I am going to replace the haft. For hewing logs, the straight, short handle means your knuckles are going to be bandaged up fairly quickly. A bent handle would work nicely for hewing logs, but not a very large bend, so it remains useful for other purposes. Perhaps a little longer handle to accommodate various double hand positions. I will experiment.
bbforst - yes, the saw back cut technique is always employed when I need a controlled fall. There is a great video on youtube about how to compensate for uneven crowns and choose your cut positions for a precise fall
Looks like the consensus is in the 3-3 1/2 lb range bit, 30-36" handle, narrow bit with some meat on the cheeks....the way I like my women
I am going to pickup a vintage american bit or two, because I am also starting to create my own hafts. But I don't think I will be able to resist picking up a Scandinavian felling axe as well. I think 2-3 felling axes would cover all my felling needs. Then again, I originally said 2-3 axes would cover all my needs. Little did I know the addiction that I started
Thanks for the tips everyone, I will post back what I pickup.
Here is the shagbark hickory tree I fell this past spring, which is now seasoning outside. This was a remote location and I had to haul 3-4 foot 60-70lb sections out on my shoulder. My intent was to keep the log attached to the stump, so I could leap-frog saw horses underneath as I cut off each section. Dropping a large tree on the forest floor that needs to be sawed is a mistake you only make once.

I took this down with the wetterlings bushcraft axe and a bow saw.