What is it with you,...LOL...First you get the Zouave that is just like mine and now you get a GPR, like mine..Well, at least the rear sight on your .58 is different from mine....just kidding

You are gonna love the GPR, mine seems to favor hotter charges with .535 balls. I hunt/shoot with90 grs of 3F but have shot it with 110 and it still holds a great group. Dropping the charge much below 90 and the groups start to open a little.

Last time I ordered Englishflints was from here: (They had a sale and I ordered a bunch)
http://www.logcabinshop.com/
But looking at the present price I think you can do better. Your gun will use 5/8 or 3/4 flints, the smaller give a better spark for me but the large last much longer. After I hardened the frizzen and polished things up, I can easily get 40-50 shots out of a good flint befor I need to mess with it, some go longer and on occasion one will chip and go shorter.

I'd get the top pan charger, once you get it set, you can charge the pan with out looking...very useful if you need a follow up shot with the "enemy" at close quarters...

Look into "coneing" your vent liner or just get one already done from (Ithink) Mountainstate ML'g. Coneing involves hollowing out the liner by the flash pan to sort of funnel in the flash...Do not open up the little hole too much! I am much better at doing these things then explaining them.

Lastly, after a few season with my 54 GPR, I found I didn't like hunting with the gun. I'm a ground pounder and it was heavy, long, and at the end of a day it seemed a chore to lug around.-I'm a big guy but all my favorite hunting guns are little things). So, I bought a used Lyman Deerstalker bbl and fitted to the GPR action and wood, really came out nice. Now I have a 24" FLinter that walks fine and shoots good, it's a 50 but I've found I do much better with it off hand, especially at longer ranges. and I can still put the longer bbl. back on..

Doug