I've never sailed a Wharram
, so only going by the claims made by those who have. Seems that one of their lauded characteristics is flexibility, both of platform and rig. I would think that this would be fairly tolerant of slack or stretch in the shrouds.
The fairly tall deck
stepped (from memory) mast of the Columbia
will not be so tolerant.
Lashings, especially when done ad hoc via shackles instead of deadeyes will be hard to set up as tight as a rigging
screw. To me, lashings seem a poor choice when proper rigging
screws are available.
In jury rigs I agree that they are appropriate, and have used one myself when a baby stay broke on Insatiable one on a passage
between Bora Bora
. They are also appropriate on gaffers with pole masts and other traditional rigs which do not rely on very tight rigging to keep slender masts in column.
Meanwhile, I'm glad that the Scouts have solved
their problems. It is quite possible that I have underestimated their experience/resourcefullness/ability. From the original question, it seemed like it could be scanty. In such cases I tend to be conservative in what I suggest.