Short of buying a Toyota Land cruiser, ditching the 105c stat is the best thing you can do to a FF, for reliable driving enjoyment.

Just got back from a 600 mile round trip which included lots of mountain driving in the south of Ireland and stuck the iidtool on one day when in the mountains.
Highest readings I got was when Radiator temp went to 85'
Coolant temp peaked at 95'
Gearbox oil temp hit 115' Declan
2003 FFRR Vogue 4.4 V8
97 Defender 90 300 TDi

Can't moan at that... cooling system working well...  Pete

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2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-