Maybe it's the colder climate where you live that makes them noisy so often? I've had mine on the car since they first came out. I have had to lubricate them only once.

 

mine get noisy in colder climates. i need to get them greased, but then i always forget about it when it gets warmer.

 

Mine started getting creaking during the summer. Now looking back at it, I did go over some deep water during a storm. Could that have caused it? There were lots of oxidation around that thing where you insert the grease and the adjustment bolts. Should have taken pictures when car was on lift.