I second powellrc's comment on the nylon rods. You will find that they contract and expand a lot...especially in the warm weather you are waiting for. I have two SIG planes with nyrods, the 4*60 and the Somethin Extra... Well I should say they used to have nyrods. I have replaced all of them with the 2-56 rods. Got tired of retrimming...even during the same day as the temp changed from morning to afternoon. Go ahead and keep them, just remember to keep checking your trim.