I heard tale that a lot of the new jibs have straight battens in them and have sailed with one myself -I didn't try but I imagine I would have a tough time furling it with the 3.9" diameter required.
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B.4.2.2 For safety purpose, it shall be mandatory, when racing, to furl done by the crew in normal position on the trampoline. The crew may be asked to demonstrate his ability to furl the jib when B.4.2.3 The maximum diameter of the furled jib shall be 100 mm.
For that matter, that jib I sailed certainly didn't meet this one:
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B.4.2.4 The maximum number of jib battens will be 4. The battens and/or the batten pockets length shall not exceed a distance of 250 mm normal from the leech. The batten pockets shall be parallel to the luff (± 5°), with a maximum inside length of 300 mm. The jibs measured, marked and appearing on a measurement certificate prior to 1st December 2001 remain permitted until 1st March 2003.
The furling one is a common problem with 4:1 self tackers. Not many actually furl and IIRC the furler is scheduled for deletion in the near future.
Jib batten pockets are another common area of non-compliance. Once again when they go full batten jibs, this issue will dissappear.
