I am not miser but my thinking is no need to give any angpaos at all.
The winning money are your hard earned money. Like you say, you are only making back what you lose last time.
When you lose, who give you money? Who give you angpaos? Get it?
The 4D sellers are just doing their job. Like some good workers everywhere, the MILF do extra like punching roll numbers out separately for you. There are always some hardworking people who will do extra. You may not know she also punched for other 4D buyers, not only you.
My thinking is you should save up your money, spend on your family and give them a treat, and forget about worrying whether to give angpaos and who to give and how much to give. Save your money.
The 4D sellers should give you angpaos instead. If not for people like you, they will not have a job and salary. Right???