The startup I'm working on had an interesting start and we have 7 'founders' involved. Only 5 are really contributing anything to the project even though the ot

The startup I'm working on had an interesting start and we have 7 'founders' involved. Only 5 are really contributing anything to the project even though the others somehow seem to feel that they are entitled to a share in the profits. At this point it's not much of a problem but when we get funding I'd like to make them an offer to leave and give up their rights to the company. I'm thinking of offering 1% of the profit from any company sale or an option on 1% of the publicly available shares if we go public. (That's for each of them so basicaly give away 2%) Do you think this is a good move? Has anyone dealt with something like this before?