I play 4's now, but sometimes i like to tune to drop-d. When I'm in d the tension of the string sucks, and to keep going back and forth between e and d kills string life and makes the string looser and looser over time. I don't want to stay in d because then I'll have to relearn everything. Should I go with a 5 and make life easier? If so, which one? Music Man Stingray SUB 5 or Fender Jazz V?