My dad just got his old high country bow set up for me to start. But after shooting for a couple days, I learned that I love to shoot and I want a new bow. I will be getting a job this summer and thats how I will pay for it. I cant decide on the Mathew Switchback XT, Bowtech Tomkat, Bowtech Tribute, or the Bowtech Allegiance. Since I only draw about 50 now. If I get a bow that only has a draw of 40-50 can I later get limbs to shoot 60-70? Thats what I am worried about the most with buying a new bow. I dont want to get a youth bow, but I also cant pull back more than 50. My bow now is set at 48 lbs.