I got a 10"Liogier hand made rasp , stiching #9 lefthanded. Nice rasp. Tried it out on some maple and oak.
The liogier cut quickly, but my #49 Nicholson cuts just as quick. The Liogier gave a smoother suface that would need very little sanding. Can't say the lefthanded sticthing made any difference.
The Liogier is bigger than Nichcolson the round side is more curved. Also the teeth go all the way to the edge on the Liogier.
I think the Liogier performs a bit better than Nicholson, but is alot more expensive. All in all I feel Nicholson rasps give you more for the money. That being said, I'll be ordering an 8" half round rasp, stiching 7 from Lioginer. Can't get those shapes from Nicholson.
Best regards
Rolf