Hi Geoff, that strikes me as kind of odd... Mainly because you are naturally able to move your hands further and faster past your hips than you would over your shoulders... Thusly creating more lift, and in a quicker fashion.
You can always experiment... If the bridles aren't marked where you hook the lines on, go ahead an make sure both sides are even, then mark 'em for an easy reset later... Having done this, try moving the "clips" up an 1/8" or 1/4" at a time so that the nose is pulled in towards you slightly.
Ideally, this would increase the lift a little.
Now, if it goes all soft on you and doesn't respond... Go ahead and move 'em 1/8" or 1/4" down, so that the nose lays back a little more.
If the kite just doesn't want to get off the ground and tends to oversteer (uncontrollable spin) too much, try working it out somewhere in the middle.
Also, it might be a good idea to make sure that all the fittings (where the spreaders go in) are all in the same place too... Sometimes after a lot of flying, the stoppers come loose and the wander around a bit.
Regardless, the kite and all it's parts should be identical on both sides.
Please let us know how it goes?
Also, what kind of wind speeds are you generally flying in?