Sent my recently acquired g20 back to Glock to get a refurb (at no charge other then shipping) and while Im waiting I started investigating aftermarket barrels for a number of reasons mainly accuracy and reliability . Im trying to decide between the Wolf and KVM also Wolf makes a 6 and also one that can take a compensator . Is the KVM a better barrel? Is it worth getting a 6in barrel? and does the compensator work well enough for the trouble/cost ? Any other suggestions/comments ?