last june i brought a Bebot Bautista cue here in the US, from the Philippines. it went through 29 hours of air travel, 4 airports and it did not have any issues with warping. i made sure that the butt and the 2 shafts stayed straight for about a week before i sold it. i think it's a matter of how well the wood was seasoned, and how well it was built. also, i think i did a great job insulating and packing the cue/cue case.
right now, i brought another one (for sale). so far the cue is ok.