looking for some help.

got an a6 c6 2.8 FSI which I only got about 3 weeks ago, love the car but the 1st - 3rd gears are starting to get to me.
at first I thought it was just me needing to get use to the new "bite point", but don't feel that way now.
its hard to describe fully, but ill pull away in 1st and then put into 2nd and as I hit the bite point the does a jerk or jolt before it accelerates.

if I do it a lot slower then still does the same, and if I rev higher then it still does same and I sound like a noob driver ll.

the stranger bit is it don't happen every time, and only happens 1st - 2nd and 2nd - 3rd.

also, when you go down a gear its worse, say ur in 3rd and coming to some lights, you slow down and drop to 2nd as there about to change, as I roll up to the lights in 2nd, I take foot off the clutch and wait to accelerate and as soon as I do it does the jerk/jolt again and dips a bit, like when u use the clutch and gears to slow down if u had no brakes.

ive got a £70 handheld reader and no codes have come up at all.

any ideas?

the seller is 2hours drive so want to avoid that if I can.

cheers