well I had both last sunday i did put one right in front of the other to see the differences.
I don't know much about projected area In away I'm still a newbie though i do kite for almost 2 years but when i put them together they seemed too be different in size to make an honest comparison.
One thing I can say is the LE of repature2 is flat for shore and the sonic a bit rounded
The cc-bar of the rapture2 although more confuse in the biginning I think is great and very easy to adjust when you get used to it. (no pressure)
The sonic is very simple but i felt more difficult to adjust due to the use of both hands to grap the rope under the bar.
(thats it for now anyway pardon my English is not my first language and I might use rong terms to explain my self.)
Your english is good and is understood. Your grammer and spelling is the only thing that you might improve.
Thanks for posting in English.