Well I thought I'd give this a go today (it finishes tomorrow), so did some practise laps with the default set until I was frequently running regularly in the 42s (best was 42.50 HLVC valid), with the intention of having a fair chances at recording the fastest time (currently 43.33 for customers, 43.08 for staff).
My only concern was how the different equipment would affect my driving (as I've struggled with this in the past). The brake pedal feels quite a lot different (very weighty), and the FFB is a little stonger than my G25 can muster, and had that been the only differences I'd like to think I'd have quickly adapted.
What I really struggled with was being thrown around; I found it very difficult to focus on the screen during transients, and even struggled to judge the attitude of the car during the long sweeper onto the final straight. This severly hampered my ability to place the car on corner entry, and thus my times suffered.
I had two goes (6 laps); clipped the wall and spun on two, two were 45 something, two were 44.4.
Still, netted me 7th place on the table. I'd have tried more if it didn't cost over £1.50 per lap!