Thing is - of all the people who have had a trip to Geoff - I've not heard of anyone who has claimed:
"Holy Fcuk! The consumption is way up, and there is a stink of fuel!"
"The bike runs worse than when I took it in there!"
I know that the bike I have, with the high performance exhaust and air filter - was running ultra-lean and almost unridable. Thought about PC5, FRK Module, Rexer - and decided on Hilltop. Bike runs tip-top now, with no concerns about fuel consumption, loose connections or subsequent over-writes of the mapping...............
If I get time, I'll pop along to another operator for a dyno run - just for fun
Al
I'm booked in on Wednesday for my GSA so will report back. I'll bring extra biscuits for Geoff..
One would have to question why, someone who does not own a GS would register with a GS forum, and make his first post a long and rambling complaint about someone who offers a service which has been taken up by and revered by many forum members ?
Steve

...
The “unmapping” at Hilltop in July took two hours during which Geoff again did anything but work on the bike – he spent perhaps 20 minutes max actually doing anything with it. At no time did he ask whether he could adjust the mapping to address what I felt were the deficiencies in the remap. Just before processing the refund Geoff again tried scare mongering about how lean it was now running, with dire warnings about it burning valves, holing pistons etc etc. He even showed me a new version of my dyno charts adding an A/F graph which showed off-the-scale 22:1 all the way up to 4500rpm (which was odd because I don't think that a petrol internal combustion engine can run under load at over 22:1 and will seriously misfire at 16:1). I was then asked to state my acceptance, in front of the cctv cameras, that Hilltop accepted no responsibility if the bike went bang. I was also informed that there would be no record of my bike having been “remapped” at Hilltop. Geoff was then happy to let me ride off on the bike…
Recent discussions on this forum indicate that nobody is sure what Geoff actually does to remap a bike ...
We have just booked two bikes in at Hilltop(GS's), having phoned around, and made enquiries with BMW about an s1000rr race ECU, the dealership told me, don't waste your money buying an expensive ECU, take it to Hilltop.
So in simple terms for the non believers, BMW Dealerships are recommending Customers to go to Geoff.
There are many many satisfied customers.
Race teams use Hilltop
BMW recommend them.
One person is not satisfied, is offered his money back??
No brainier".......................
There is no reason to fear AFRs that are above 14.7:1 for an inertial dyno test. They are solely due to conditions on the dyno and bear no relationship to what your bike is doing when you ride it on the road.
At the start of a dyno run, the AFR should be its closed loop value of 14.7:1 (unless you runs LC-1, LC-2 or AF-XIED, when it will be lower). If it is higher than that it is due to the bike having been decelerated by the dyno roller and going into fuel overrun cutoff, shutting off the injectors and drying the fuel (that is there in normal operation) from the wall of the throttle bodies and backs of the intake valves.
No one should be concerned that valves will be burnt or holes in pistons from dyno run AFR reports. The hottest exhaust gas is from operation at 14.7:1. Richer or leaner results in lower EGT.

roger i must correct you that only applies on a dyno setup that has no load control and temp control and air pressure and of course lastly humidity and rad
i use a dyna pro t62lcc in a fully controlled ram air custom made dyno room i use 3%pua load
hope this has been some help to you