So I have a 5955tg on its way to me now and I'm looking to put it in when it arrives. I've done a little research and found that I'll need a heavy duty servo saver spring (5344X). Do I also need the Proline aluminum servo arm? Are there any alternatives? Any other required parts?

I'm using a Futaba 3PM as my radio, I've heard things like "setting your servo endpoints" before but the concept is foreign to me. Any help on radio settings would be great.