Hey bro,
Good to hear that you enjoy one of my FAV childhood dishes. My family is caribbean-born, and I grew up on the food. Most of my American friends wince at the thought of eating goat meat, so it's always good to hear that there's another fan.
Btw, Jamaicans didn't invent/create curried goat nor many other caribbean things that they are credited for. Curried goat is from the indian community in the caribbean (which is quite large).
So now...What would you like to know? What kind of recipe are you following? Most self-respecting indians/caribbean make their own curry at home - customizing the balance of delicate/stronger flavors to their own liking. You want to slow cook the meat over v. low heat - I usually go for 1-1.5 hrs) - this will make it nice and tender. I haven't tried using a pressure cooker, b/c I know it'd kill the effect of the spices/marinade.
Tell me more about what you're doing and I'll let you know what you should change. I make curries a couple times a month and have 3 styles down to near perfection.