How much should I split with a Partner ?

[Kaustubh Johri]

I am primarily into fix and flips. Looking to get into wholesaling for internal lead generation. However, occasionally, I will be disposing off the properties to other buyers based on my work load. My primary focus will be on the acquisition side. For disposition, I may require a partner (another wholesaler perhaps) to help me out. If I choose a partner for disposition, how show the spread be split ? 

50-50?

60-40 ? 

Any other suggestions  ?