i use size 3 gap -3 color red and thick 1 no outline. im weird and like small gaps, if you dont like -3 try -1 or 0
I would use the smallest one you can stand, still being able to see the center, and a visible color like white, lime or red
my friend told me to use this; http://tools.dathost.net/#alpha=200/color=5/color_b=50/color_r=50/color_g=250/dot=0/gap=0/size=5/style=4/usealpha=1/thickness=0.5/outline=0/outline_draw=0. but any time i go to copy and paste the variables into console it doesn't work.
cl_crosshairalpha "200";cl_crosshaircolor "5";cl_crosshaircolor_b "50";cl_crosshaircolor_r "50";cl_crosshaircolor_g "250";cl_crosshairdot "0";cl_crosshairgap "0";cl_crosshairsize "5";cl_crosshairstyle "4";cl_crosshairusealpha "1";cl_crosshairthickness "0.5";cl_fixedcrosshairgap "0";cl_crosshair_outlinethickness "0";cl_crosshair_drawoutline "0";