Haven't looked at a TC flinter in years, but I was not impressed with the only one I ever had. Lyman's GPR in flint is as cheap as you should go with a flint rifle. Most of the flintlock's current poor reputation comes from cheap production rifles that have poor frizzens, poorly designed locks, and just generally crappy workmanship. When they fire, there is a HUGE lag between flint contact and ignition. If you scrimp on a flinter, and get a rifle with a cheap, low quality lock, you will find yourself wishing you hadn't bought a flinter.
You don't have to spend big bucks for a shootable flintlock, but the Lyman is about the most rifle for the least money on the market.