Lol its all good, Im actually planning to put another coat on and bake it lol, there is a small decrease in cooling efficiently but its not alot. Also as far as cooling it is above what is needed for this build, I dont plan to OC it alot and it is being used with a H50 pump so its not going to move alot of water anyhow lol. But the temp will be great because I added a RES which usually has great results on the H series coolers. Also the RAD is from a Corsair H100i cooler and its ID is a little bigger than 1/4" ID and does great in my flow tests. Compared to the 120mm RAD thats stock with the H50 its a Upgrade.