Pete, we all took acception as a group (yes we are very close here) and your appologies are accepted and understood.
Personally I think that compounds are more accurate within sighting limitations. If you could put a scope on a compound the crossbow could not keep up. With a compound there is the ability to endlessly tune the bow and the arrow. We on the other hand can tune the arrow in a limited way and tune the bow in a lesser way. That being said if you are looking for a crossbow that can give you accuracy on motionless targets at extended ranges then a crossbow has the potential to exceed a compound. But it will take endless hours and days of research and experimentation.