[CHEQUERED]

yeah, the your dyno operator used 4th which helps "soften the curve" and stops the low end "loop", and i i can tell that its not a 16sec pull like the purple one posted, more like a 9-10sec, the hump at 5k is a tell tale.

The lower the power on a long pull (higher gears) the larger the peaks and troughs.

That dyno is also in an odd mode looking at the results, std cars pull 140 to 145hp all day everyday on all dynos regardless of brand here. The sheet you posted at 165hp is quite a way off what we see here std.

this perrin one looks to be in the same mode (it is very old firmware by the looks too)