MX2 quality, ease of use

I've been using for a long time, the MX2. If it works, stick with it. A colleague suggested that the MX4 successor "significantly" easier is to use. (Better, because something "more fluid" consistency) I have to agree with him. All I can give real benchmarks. 2600K; H20 920 cooler; Housing change, everything else remained the same;
Handling is easier to process, in fact; Temps: 2600K @ @ 4,5Ghz 1,29Vcore; Prime95 Blend for 30 min .: MX2 MAXT 65 ° C; MX4 MAXT 66 ° C; This includes technically related measurement tolerance and ambient. Means to me: easier handling (clear) against same performance. MX4 makes for me the race!