i was joking does 140kg lines sound better?

Seriously I would take the kite out a few times and see how the stock lines feel.

It's not just the size of the kite, HQ specifically tuned down the Symphony line (in terms of power) to make them attractive to beach fliers that just want something to buzz around the sky.

Any kite will generate power in the right (or wrong) winds, but it also stands a good chance of self-desctructing in brilliant Technicolor before your eyes, if it is not designed for those winds (reinforcements, internal bracing, etc).

If the money is just burning a hole in your pocket, I expect you would be just as well served by picking up a set of Flexifoil or HQ 100 kg (220 lbs) set.

Just keep in mind that that's $30 or $40 that could be going towards your next kite (~20% of a NIB HQ Beamer IV 3.0M or ~25% of a NIB Flexifoil Sting II 2.4M).

As always, your call...

EDIT: Just went back and read Krohn's/snowspider's posts in the other thread. They are basically saying that, especially in this range, it is cheaper to replace/repair lines than repair a few blown cells in the kite.

WRT to the joking: sometimes it is hard to tell when a poster (especially one with a low post count... no offense meant) is joking. The number of times people have received pages of information, totally disregarded it, and went on to either break their kites or themselves is why that particular topic is kind of sensitive to humor being misread.

ATB,
Sam