The first thing i see is that there are not any tip overlays. i would not recommend using fast flight string on that bow. I would NOT recomend taking that bow to a so called "Pro Shop" at an archery shop... there are very few out there that have any pro's, and VERY few that know anything about traditional bow construction.....
That is a pretty aggressive R/D long bow. i would see if you can find a local Trad bowyer, or a Trad archer to look at it, or ship it to one, before putting a string on it.... I would be glad to do so myself if you cover shipping cost. Kirk