As far as match ups. I'd like to see the Timeless 0.68 go up against the Razorock Game Changer 0.68. I think it would be fair for one of those 2 to eliminate the other.
This or the Karve vs one of the Razorocks would be of interest, especially the Gamechanger as these two somewhat battle for the same clientele.
The Karve vs a similar style vintage razor would also be of interest if you were looking to move in another direction.