In the past TG has been very good to check baggage to final destination despite on separate tickets. I'm considering an Avios redemption ticket BKK-BK on CX in business class but would also have to purchase a TG dom. flight HKT-BKK as my origin will be HKT (and before somebody points me to the direct KA flights HKT-HKG let me add that these are not available for my travel date).

I suppose I shouldn't expect any issues when showing my CX itinerary to the check-in agent at HKT and request my bag to be checked to HKG?