Hi, I bought a 3mm direct drive V5 and want to change to a 1.75mm direct drive. Wondering if we can simply interchange 3mm & 1.75mm heartbreaks while retaining the same heaterblock and aluminium heatsink(cooling fins) body? Or do I have to get a whole new 1.75 direct drive metal setup? :cry: *im assuming as long as both heatbreak has the same OD (M6??) then we can simple change out to retain most of the metal setup, and a cheaper "switchover" to 1.75mm. Cheers