Looking for thoughts on roof rack accessories

Thule T Track Adapters t slot roof rack accessories Features and Benefits Allows fitting for a range of products – will allow fitment of accessories from most other roof rack manufacturers; Standard T-Slot top and bottom joint slot machine I bought the Yakima recovery track mount for my maxtrax and they don't fit, the Bolt they supply is too wide to fit into the gap in the t slot

the green knight slot MAXTRAX Flat Rack Mount with T-Bolt and Xtreme MPS 17mm Maxtrax flat rack mounts, two low profile mounts that are compatible with your roof