It's possible to catch attention and attract more investors with current high ROI for masternodes:
https://masternodes.online/currencies/HLDC/Each MN investor can get their money (original one) after one or two months.
ROI (annual): 1,923.86% / 19 days
It is something like a pseudo-ROI because investors will never get the same ROI as estimated one at the point they invest money in masternodes.