Prop walk - Catalina 30
I also had this problem - especially in my last slip, where I had to back to starboard in a narrow channel. Until I got the hang of it, I had all sorts of problems. I found that by giving the boat a lot of throttle in reverse and then quickly backing off the throttle and shifting to neutral, I was able to achieve the steerageway I needed. Then I could steer the boat in reverse while in neutral... or shift back to reverse once I had enough steerageway to overcome the propwalk. Now, I back out of my slip to port - so it''s easy... I''ve also found the prop walk to be very useful in lining my boat up to go back into the slip. Use it to your advantage.