If you can cast your weapon onto another boat, you’re to close. 2 or 3 times your longest cast is sufficient.
While making a pass for another drift, idle is a good choice if your closer than a football field to other boats. Beyond 100 yards, a surfing speed is fine.
And for all you trollers that insist on putting your boards Rt up on my boat and drift, beware, I will be casting to catch your board,