the boom and furling tube assembly can slide down or up. A rectangular plastic should have spring loaded pin in corner and two holes in mast it pops into. One is for boom to be above a raised hatch also head clearance in cockpit .This is most commonly used position. The lower position   I use in higher winds or stormy conditions .
Mark sv fairwinds II 

----Original Message-----From: Allyn Baskerville <allynb at adsne.com>
To: The Rhodes 22 Email List <rhodes22-list at rhodes22.org>
Sent: Mon, Jun 22, 2020 10:55 am
Subject: [Rhodes22-list] Boom Connection to Mast

Someone made a comment to me that my boom and sail are too far apart, so I did a little investigating. There is a hard piece of black plastic connected to the mast track with a hole drilled off center. There appears to be a corresponding hole (albeit significantly larger) drilled into the mast. This will raise the boom up a couple inches (and probably keep the pop top from hitting the bottom of the mast), but I have no idea what kind of hardware goes into this hole. Am I missing something here? Thanks