Is it rough on a scope to keep dialing the elevation turrets up and down? I have a Vortex Crossfire that's been great so far with tracking and sometimes go from 100-300yards. Sometimes varmint hunting i need to adjust a lot and wondering if i should pickup one of these turrets or just use the factory ones? Right now the factory ones are nicely marked like these Kenton ones below and i have a card taped to the stock with all the numbers on it.
http://kentonindustries.com/custom-turrets/vortex
http://kentonindustries.com/custom-turrets/vortex