Switching from a pair of hotends on the X carriage to the cyclops 2-in-1-out hotend vs chimera/Kranken hotends

[markfarnell 0]

I have bought a prusa i3 printer with Bowden dual extruder, which the 3D-printed X carriage holds two independent hot ends. Unfortunately 3D-printed part that grips the hot ends come loose no matter how tight I tighten the screws, and often slips out during a print. Therefore I am looking for a more reliable replacement.

I am considering the cyclops 2-in-1-out hotend, which saves me from calibrating displacement between two nozzles and things loosening.

Is it better for me to go for the 2-in-1-out hotend, or other 2-in-2-out packages such as Chimera and Kranken?

My goal is to use the dual hotend to print ASA / polycarbonate object material, and soluble PLA/HIPS/PVA support material. If the required hot end temperature of both materials are different, (say 240C for ASA and 190C for PLA), then does this preclude me from using cyclops? Otherwise I will have to wait for an excessively long time for temperature to drop / raise in each layer when switching materials, am I right?