I don't use any spacers with my original springs and have not had problems bottoming out etc. I just thought with the ATF in there the handling was a bit mushy. I did change to 20 wt fork oil, which gave me better handling but a harsher ride. A bit too harsh for me. I am going to switch over to 10 wt and see if that helps the ride. The ride was more plush with ATF in the forks. My feeling is that with the 20 wt. I have more control in fast cornering and heavy braking but there is too much damping for everyday putting around and riding the slab. I will report back with any findings after changing the oil to 10wt fork oil.