Any experience with 506(b) syndicators?

[Derek Berns]

Looking to deploy a significant amount of money as a sophisticated investor from a cash out refinance on my house. My goal is to have my money work for me for 3-5 years then syndicate my own deals to eventually leave my 9-5. Does anyone have experience with syndicators who run under 506(b). I have spoken to one syndicator, Tim Bratz. Most of the syndicators I have found are 506(c). Looking for at least three plus who to stay away from. Thanks. Derek