I have noticed that my manual shift 987S occasionally fails to fully engage 4th gear during normal driving. I'll use the same light pressure on the shifter as on the other gears, but find that I'm in neutral. This usually occurs in the 1st few miles of a drive after the car has been idle for a while and the engine is cool. Engaging 4th also has a less positive feel than the other gears. I only have 1,000 miles on the car right now. Is this likely to improve after break-in? Seems like I've read about the vague 3-4 shift somewhere before.