OK so I was able to get out today and throw a Prism Pyro, Eclipse Reactor, CN Reactor, N reactor, N Hex, N Uplink, N Paradox.
My pyro and eclipse reactor are almost the same flight. The pyro probably fades more aggressively but ultimately they end up in the same place. With the eclipse reactor I was able to get a smidge of turn out of it, but very little and hard to tell most of the time. Also the turn was only evident if thrown perfectly flat and giving it a really good rip.
Cosmic Neutron and Neutron reactors flew very similar but the cosmic is ever so slightly more stable. These fly how I would expect a reactor to fly. Clearly gets the -0.5" turn with a good rip and flies straight with a nice predictable fade. If I really launched either of these I could get them to almost resemble a hex but not quite. The hex, by comparison, has more turn and less fade (duh, the flight numbers say that) but honestly it's not that much.
I think if I was using my mids to go full send on the time, I probably wouldn't bag the hex but I am using them at around 75-85% power and at that range, there is enough distinction that I would carry both the hex and the N reactor. At that power range the reactor is straight with no turn and good fade. The Hex will turn a bit, and have less fade than the reactor, finishing just about straight ahead.
Currently my mids are probably: Eclipse Reactor, N. Reactor, N. Hex, N. Uplink, N. Paradox.
I really wish I wasn't carrying five mids with four separate mold but here I am. I could see myself having a beat reactor and beat uplink and being able to drop the hex and paradox. But that day is not today.