This is a picture of an inexpensive Moruku flint pistol I picked up for 20 bucks that needed a front sight,trigger job and stock repair. It makes as good or better sparks consistently than does my expensive match pistol I worked over.
Note the strike contact point and even no bounce scrape.
The flints are my home knapped made from Keokuk heat treated chert from Oklahoma. I make them from point scrap chips with no humps to grind off. They are as good as any English I have ever purchased and are free to me with a little elbow grease.
Interestingly this pistol was made with no flash hole liner and angled forward of the breech plug. It is a very reliable sparker and have used it in matches out to 50 yards with success.