Shavette don't shave. The half of DE razor does. So, the shavette can be as sharp as DE blade, and is. Straight razor always has some pull compared with DE blade, but this doesen't mean that is less sharp. That is just the way it feels.

But, the weight of the shavette does make the diference. Ussualy, the heavier the better. You might consider Feather blade. classicshaving.com has them. It's a heavier than Shavette.