The new Nicholson 49 and 50 rasps aren't quite as good as the old ones were, but they're still good, and better than any dept store or big box store junk. I use newer model 49's and 50's, among others, and they're just fine.
I got a pile of used farrier's rasps from a horseshoer and gave or threw them all away. They don't cut at ALL like new ones, so I buy em new. I like the tangless Nicholson farrier rasps, with the orange plastic on either end. They're more comfy to use, imo.
Happiness is a new sharp rasp... or file.