Nothing worse than an overclocking competition that frowns on overclocking
For me "no clock cap" categories have no point when benchmark is limited to 1 thread. 2-3 guys will make results on cold and grab 1st spots without even trying to tweak anything while others will try everything but since they're limited to air/water then will be on the bottom of the list. What's the point to even start something like this ? I mean no cap will kill all the fun of competing. I saw it many times when someone was bringing high LN2 result and others saw no point to even post anything.
Basing on tweaks made on lower clock you can always bump vcore and cpu ratio and make good result for hwbot or something else.
5GHz is not bad but sadly all my current rigs have limits of ~4.7GHz