chrisbell said:IMO, the point of the Slant is that the blade slices rather than chops, as slicing is a more efficient cutting stroke. Whether the slice is angled one way or the other is neither here nor there - imagine a guillotine blade angled so that the left-hand end of the blade was lower than the right as compared to another guillotine where the right-hand end of the blade was lower than the left - they'll both work equally well!
In view of the subsequent posts - I think Chris had the analogy slightly wrong here. It doesn't matter if the blade is sloping from left to right or vice versa - the point is whether the guillotine operator allowed the blade to fall with his right or left hand - in other words it makes no difference at all.