I'm 110kg riding the C4 13m a fair bit lately....it doesn't go as big as some others but has great hang time...ive also been on the 12 and as far as I'm concerned they both turn as fast as each other.....but I have to tell you this...try the 10....there is something special about this kite...don't know why but it halls my big ass around from 20kn ....but is an awesome kite at 30 plus....
However for an answer to your question...I would prefer a 13 on the Goldie....
the fox
THANKS FOR THE APOLOGY

PS...love it in the surf at Wanda....
