very dull balls, you will need heavy oil and lots of it up front. Plus you'll need to have some pretty good ball speed on your side. Remember that they might not be the biggest hooking ball on the condition you are playing on. Plus whatever your style is, rev dominant or speed dominant, will also weigh in on what's going to be best for you. And it might not always be the most expensive ball in the line.
For example, I'm speed dominant. And my NVD was not retaining enough energy in the 4 different houses I tried it in. So I polished it. Polished its better, but tends to miss the mid lane a bit.
You are used to the reaction of a Tornado. Those top line balls you have mentioned are like night and day compared to the ball you use. First of all, all the Tornadoes these days come polished. So you are making a change from a polished ball to a dull ball. Plus you are then going from entry level to top performance level. Its not that you couldn't handle a NVD or Resurgance, but your lane conditions and experience might not get the most of out those balls right now.
You are growing and at 15, a 14lb ball is not unusual, though most young men in your age group are throwing 15 or will be throwing 15 soon. So it might be a transition ball for you, this 14lb ball. You might not stay in it too long before you gain enough strength to move up to 15. So the investment of the tip top performance ball might not be worth it right now. Especially when you consider the reaction and performance of some of the mid range balls like the
Hammer Doom line, the Rivals (though they are dull expect the new one coming out in Oct) and the
Brunswick Swarm and Copperhead (dull).
Erin