1, as the person in charge, even if it is a verbal agreement, the original B good stake is how much it should be, we must abide by the business ethics and the spirit of the contract. Would you like to give you a 35% stake in B, the full measure of his ability, you will not give the shares free stripped of others, after all he told you for two years, but also improve the performance in perspective of B, he was uncomfortable is justified.
Although A, with your personal feelings, but not because he could not bear the main business shop that he did not work, open shop to move goods delivery etc. These things also need a personal responsibility to do, but their division of labor is different, can not say that the A position is not important, it is also a part of your shop profit chain. You leave him, not only on the emotional, more should be considered from the work. As the saying goes, no credit has elbow grease, he has never abandon with you, the distribution of shares to he has no ground for blame.
Therefore, in dealing with the distribution of shares of the company, some of the basic concepts to understand.