Quick suggestion on the rads, I think it would be a good idea to put a blanking plate under the screw holes to prevent people puncturing the rad.
Weave looked into a lot of things with the rads the only problem is with it only being small runs each adjustments adds ££'s to the cost. PPl would like 4 in / outs, blanking plates, m4 holes ect ect , it all mounts up in costs especially here in the UK. What we are doing is simple cheap modification that will not cost the earth and will not Comprise on quality.
As we progress we can revise each step and improve how ever when using rads people need to be careful and not rush into adding things. We are looking at proving each rad with enough screws so that you can add enough fans for push, push / pull with no problems and in two sizes. one for slim fans and one for thicker fans.
Some thing as simple as adding blanking plates costs a bit due to them being hand made and they would need welding into place and this takes time.
People have requested bleed values again this is not as easy as you may think as it would need to pass though two tanks and be a water tight fit in both tanks.
And we are looking to all the excellent ideas users come up with but it will take us time.