Ordered my Fantom IonV5 Works Edition Short Stack 17.5 yesterday. Going to start out with gearing it at 69/33 (5.43 FDR) or so at 58-60* timing. It is going to be replacing my D4 17.5 Maxzilla and Certified Killshot 17.5 so it has some big shoes to fill but from what I have been told if any motor is going to do it then this is he one.
Right now I am running about 57* timing on my standard D4 Maxzilla and about 68* in the Killshot... Both run pretty comparable with 69/32 gearing and come off at about 150 after a 5-6 minute heat with no Fan. I have also ordered the chassis brace that fits the 25mm fan to add to my B5M and until it gets there I am running the fan brace like the the R1 Wurks thread