The one thing which bugs me is there is no GNAS category for horsebow. You can sometimes be allowed to shoot against longbows but it's not accorded the respect that other bows types receive. No wonder a lot of archers consider it their 'toy bow' when it comes to competitions there's not really much doing.
Similar in NFAS tbh - I shoot in 'Hunting Tackle' (my bow has carbon limbs (Samick Mind50) ), otherwise I think I could just about get away with 'Trad' (IIRC - although not sure). Shooting woods I'm definitely at a disadvantage in that category.