Basically I want to have only spiral but i can't get it... I was playing around with rail settings in my cfg but nothing happened. Anybody knows the numbers to get only spiral without a core?

set color1 "19"
set color2 "19"
seta r_railCoreWidth "10"
seta r_railWidth "10"
seta cg_railTrailTime "850"
seta cg_railstyle "3"