Join Date: Dec 2008
Location: Calgary, AB, Canada
Thanked 76 Times in 71 Posts
Rep Power: 9
You will see a speed decrease as the boom is raised and a speed increase as it is lowered.
If the leech is being choked off, then the boom needs to be raised. This is actually easier with a rigid (spring loaded) boom vang. Hardening the topping lift may interfere with the roach.
ISPA Yachtmaster Ocean Instructor Evaluator
Sail Canada Advanced Cruising Instructor
IYT Yachtmaster Coastal Instructor
ASA 201, 203, 204, 205, 206, 214
As I sail, I praise God, and care not. (Luke Foxe)