it or will

i am trying to take THF to 75 currently THF/NIN i would also like to have my RNG avalible(sp idc) for campin NM's and SS + Sidewinder and i think Slug Shot not sure if it is useable by THF/RNG i think it is but anyway, my RNG is now lv 10 will i be able to get it to 37 with the nurf? i am also...