Have skied on 1 degree base bevel most of my life. Have a racing background but now am long since retired and own race skis to primarily just free ski on depending on the conditions. 2 winters ago I got a used pair of Rossi WC slaloms 165 and found that they were not very user friendly compared to my previous 5yr old Rossi WC slaloms and the Fischers/Solomons I skied on in college. (felt grabby)
Net it really affects my "glalom" turns and also my ability to feather the top of the glalom turn to scrub speed. At first I thought the skis were just quicker bc tech has changed and potentially not well detuned in the tips... but after more reflection I think it could be the base bevel. I also recently got a pair of what I would call cheater GS skis. (182 Rossi WC 23M side cut from a few seasons ago) They also came with a .5 base bevel. Have not skied yet.
Bottom line I run 1 degree on all my other skis, have pretty much forever and think I shld make the change on these 2 race skis. Goal is really to have them be user friendly and not win NorAms. (FYI have skied on race stock equipment from many manufacturers over the last ~17 yrs so its likely not that I'm not used to how responsive the skis are)n