Eskimos will work fine but I highly recommend that you file a tanto tip on each of them to prevent the tips from curling. I curled a Delta tip badly when I hit a very large bull's scaplula from approx 20 yards with a 78# longbow. It didn't penetrate at all and in fact bounced back toward me. Biggest bull elk I've ever seen and I failed because of the broadhead I used or more accurately a broadhead that I didn't prepare properly.

I have a friend that have hit a bull in the scapula with a 70# ultra fast wheel bow shooting a 500 grain arrow at 30 yards.  The arrow did NOT penetrate, may as well of shot a brick wall. We saw that bull a 2 days later with a slight limp.  Not filing the tip did not cost you that elk, hitting the shoulder blade did. 

Now i have never elk hunted but i have done a lot of testing on many broadheads and here are my thoughts. This year ive been slowly working on a heavyweight shootout this year which includes heads like the grizzly,kodiak, tuffhead and several other of the 3 to 1 ratio single bevels. One of our fellow members sent me a single no mercy double bevel to be included into the test for fun. Mind you its a lot lighter weight head than the others so i had to add a really heavy adapter from tuffhead to make up the weight difference. It has held its ground great compared to the bigger heads and proved very competitive. The eskimo is a bit smaller but the dozen i just received on some wooden arrows look very good. I would have no second doubts upon using them for anything here in the US imo as they penetrate well, take a really sharp edge very easily and are more than strong enough. For a laminated head i like them as much as the grizzly bruin or ace heads ( the bruin is another head that really has impressed me). Sometimes you just have to ignore the hype of some products and go with the old tried and true and in my books the old eskimos are a good little head.