New licensee DFW, flat rate broker or regular broker?

[Ana Beats]

We invest rent/flip properties. planning on 3 flips this years (hopefully) i just got my RE license and I'm debating on what to do. I found a very knowledgeable broker who will give me 75/25 for my properties and 60/40 for other deals. His training seems to be very good and if I can sell some properties on the side I guess it wouldn't hurt... at the same finding clients is probably not too easy either. Any advice, recommendations? other option is a flat fee broker, without having any experience it worries me not having training/support. Also getting new clients might be even more difficult. Thank you, Ana