Currently I have only the Z6. I complement it with the d500 when needed. The rest are either IR modified or older models, all Dx sensors. I have the following options:
D3S (John!
) With 160K shutter count, 3 batteries 650€
D4S, Tried it , good condition, 260K shutter count 1350€
Z6, new, current prices with FTZ aprox 1700€
D3S will get less use and batteries are not compatible with D500, but with other older bodies. Will use it mainly as a back up and rehearsals. Cheaper
D4S, also as a backup-rehearsals but with much better video, speed, etc...you know. Have never use one for a long time. IQ?
Z6, will make for two identical bodies,capabilities, batteries, cards, accessories, etc...
Your opinion is greatly appreciated.