I am going to get the Heliocoil kit and give that a go. I am one those that needs to remind myself not to overtighten thus I have a couple of torque wrenches, this particular one required very little effort but it could be I ovetightened on the last check and it didnt need much to finish it off.
Valves were pretty good. But not perfect, loose 006 but not quite 007 on the intakes and almost 009 on exhausts. Thats at 10,000KMS and I checked them at 5000kms but made no adjustments as they were all in spec.
Will let you know how I make out with the Helicoil when I get the kit.