Thinking about pulling the trigger on either a Rockshox Monarch RT3 or RC3, both are 200mm. This would go on my Airborne Zeppelin Elite, which is spec'd at 6" rear travel with a Rockshox Bar 2.1. Is this going to cause problems ? Can I compensate with a sag adjustment ? It sure would be nice to have a rear lockout and from what I hear the Monarch is a great shock.