In a week I fly Delta One to ICN, 3 hr layover then KAL economy (biz was sold out) 737-900 to MNL. On return, KAL business 777-300 MNL-ICN, 14 hr layover then return Delta One. DL Platinum STE+.

Questions:

• I've got a full size (ie, not international size) roll-aboard full of cameras/lenses/etc (pro video guy). Got hassled once on a intra-Euro flight about being oversized (though got the gate dragon to let me on with it, and it fit fine, but that's another story). Should I expect any size/weight hassles? (Given 737/777, I wouldn't expect it.)
• Does KAL follow DL boarding zones? So as STE Elite+ I'd board in SkyPri, even in econ seat? If not, should I be concerned about gate-checking of econ pax carryons?
• As a DL Platinum in Delta One, ICN lounge access are only KAL Prestige, correct? In T2 the East is better than West lounge?
• any general KAL tips?

Thanks!