Do necks generally need to be tightened or loosened in the hotter summer months? I ask because I just got a new Allparts neck that plays fantastic and is totally straight ... but the truss rod is also completely slack in the counter clockwise position (it's a traditional one way truss rod). I'm worried that it'll need more adjustment and I won't have the range ... but I'm not sure what kind of adjustment I'll need to anticipate in the cooler winter months. I love the neck and don't want to return it ... but a non-fixable back bow is out of the question. Is there a way to modify the rod so it'll have more range?