Berthos....
A far as Im aware.. only 12s 16s and 18teens use bags.. Mainly due to their kites large sizes in relation to the hull.. 16 & 18 have the extra hand who bags the kite anyway.. So it not the challenge the two handers 12s, 49er Javelins, Cherubs and 14s have..
In general the two handers all use spinacker tubes apart from the 12s..

But any monkey who can keep a 12 upright in any conditon wouldn't be worried by bagging a 400-1000 ft2 kite.. They are a breed apart..