The biggest problem for me is that my games tend to only have 2 people, 3 at the most; the group experience is not present.
Thusly, as a result, as most alt endings revolve around a group of at least 3 or more, it's really pointless to use them at all.
I'm also debating if I should just ban the Arnkell and Cloak of Feathers altogether. With the regular rulebook ending, it's really, really cheap. Should I?
Well, a game can quickly end if someone gains the arnkel earlier in the game, and you play with the normal coc ending.
Only the portal of power stands in your way, and maybe the sentinel if you don't have a axe. But this will change with a endboss
In my last game, my martyress has a lot of difficulty to past the portal of power. I could not roll below seven with 2 dices . And each time, she grew weaker.
But i think you should not ban those cards out of the game.
Both dungeon and Highland can give the character a chance to land on the endspace in the inner region.
People who fall behind can still win with those cards if they are lucky.
Talisman is all about luck.
You could try it first, and see if you like it or not.
PS: Because of arnkell, this makes it more interesting to go into the Highland