It's a great way to potentially invite problems as you describe it. There's two ways to go about this.
1. Grind on the claw feature which in my opinion is a horrible idea. -Imagine you are hanging on for dear life on the edge of a cliff by one hand. What would you say to me if I started peeling your fingers off the ledge one by one? That is what your doing to the extractor/case rim when this is done.
2. Add an additional ejector. You "Yang the Ying" and put another plunger on the opposite side of the striker hole. It alters the pivot point on the claw face and flattens the ejection angle some. The consequence? Thus far the few that we've done have gone well and I know of an apprentice of mine who's been doing it for a few years now down the street at Remington. He's reported back favorably as well. (on M700's) I don't really have any reason to think it wouldn't work equally well on a Tikka.
C.