"That is a most impressive performance. Believe I am sold on the 225's and 250's. Now if I could only decide between SA/LA (358 or 35W)"
That's simple. Just go with the .35 Whelen. You can always load down to .358 Win. Specs if you want.
Seriously, I had the .358 Win. first and started playing with it. Then I got a Whelen and the .358's just sit in the safe sad, lonely and neglected. I really should take them out for some air one of these days. Maybe after hunting season is over.
Paul B.