I have been shooting indoors for 2 years now. I have beeen shooting GT 30x Pro. arrows. I bought a doz. 2613 and i need help with tip weight and length of arrow for my bow. I don't a clue when it comes to Alum. arrows. I shoot a Mathews Apex. 30" draw and 52# draw weight with a limb driver rest if that makes any differance.. Any help would be great..