Going over the recent evolution of the HKD-XCD rate, we can discern only very small differences. If you had ordered for instance a HKD 800 transfer (the "lowest" day of the past two weeks), the foreign exchange market would have given you only XCD 0.7 less than (when the HKD-XCD was at its maximum), so not that much of a difference.
Name: Hong Kong dollar
Minor Unit: 1/100 Cent
Central Bank: Hong Kong Monetary Authority
Rank in the most traded currencies: #13
Name: East Caribbean dollar
Central Bank: Eastern Caribbean Central Bank