IH350,
I don't have the PHP hybrid FICM on my trucks, When I had mine done it was'nt available. I have one of the stock 03 calibrations on my FICMs. So I cannot say if the hybrid FICM with some Inductive Heating is better on mpg.
I know these FICM's brought the mileage back to where it should have been 16.5-17.5 @ 80 mph, when the ford flashes had them down to 14.5-15.5.
I have not heard of the Tow/Haul mod, what does it do?
If you have a 03-04 Bill can give you back the org tow/haul. Its the one that had the constantly locked TC in Tow Haul mode, and the second to first down shift. Way more effective at holding back a load with a trailer, then the current unlocked T/C with the let her roll stratagy that ford uses. 
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11 F-350 6.7, Auto
07 F-350 6.0, Auto, PHP FICM, PHP Gryphon, VXCF4
06 F-250 6.0, Auto, PHP FICM, PHP CTS, ARP Studs, VXCF5
05 Excursion 6.0, Auto, PHP FICM, PHP CTS, ARP Studs VXBC6(truck PCM)
00 F-350 7.3, 12 Speed, PHP Gryphon, DAC3
95 F-Superduty 7.3 DI, Auto, Mechanics Truck
94 F-Superduty 7.3 DI, 5 speed, Flatbed
93 F-Superduty 7.3 IDI, 5 Speed, Dump Truck
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