ok so i got the koolance exos and 2 video card waterblocks, but im considering building my own "hood" designed external wc kit from mostly dangerden parts but i was wondering how the koolance blocks are. i dont mind switching when i get my own but how do the 2 compare? i have 2 of the gpu-180-L06 koolance blocks right now and they work well from what i can tell but how would these be against dangerden maze 4?