Just received my Pfalcon640 yesterday. 0117 firmware.
First impressions: Definitely a nice unit. Menus takes a bit to get used to. These units needs a click joypad control.
I mostly played around in helmet mode bridged with a PVS14 on the clone KAC KVC.
Definitely heavy, had to use all my weights (1.2 lbs) in my counterweight pouch to balance it properly.
I'll swap my Wilcox shroud for a Cadex chip to drop a little bit of weight and bring the unit closer to my head.
I was able to run PVS14 RH and RH25 LH with both units as close together as possible. The RH25 is just a wee bit too forward for proper eye relief but that will be resolved with
@javemtr SBR dovetail.
I was able to collimate the image somewhat but the issue is that in helmet mode you can collimate at say 300yards, it'll be a little bit off at 50 yards. I can see how it can messes with people's mind but it still is perfectly usable. I'm used to walk around with an Aurora bridged with a Hikvision handheld scanner so my brain is used to merging 2 different pictures.
My main complaint is that you can't use the pixel offsets/collimation in helmet mode with the low-latency mode. Not sure if it's a software limitation or if it'll get fixed in the future which is unfortunate because the low latency mode is very very nice. Hard to explain but when you're in helmet mode with the offsets enabled in default mode, because of the refresh rate of the unit doesn't match the PVS14, it causes some micro-shifting when you move around and it's a bit annoying. That being said, I captured a family of deer crossing the road 100y ahead of me and couldn't see shit through the PVS14 (very dark night, no moon, overcast skies).
The pros of running the dual band definitely outweighs the cons but if I'm moving quickly or biking, I tend to leave the RH25 out of my way and put it back when I'm scanning or walking slowly. I did turn the screen brightness to it's minimum which helps blending with the -14
Laser is very very nice but I wish it would be IR rather than green.
Clip-on mode is nice, tried in front of a Leupold 1-6 and a Athlon 1-10 ETR and both were excellent. Didn't like it in front of the TA33 acog. My plan is mostly to use it as a scanner anyways but in a pinch it'd be nice to use on a wilcox FTS.
I'll try it at the range next week and compared the clip on performance with a dedicated WMT (Bolt TH50v2) on paper at 100y and on steels at 300.