Pleased to see you're up for another battle, Alan - I'm looking forward to it already! From a selfish point of view, I'd like Class 2 to stick with the 155bhp limit. When I got my car's head ported by Dave Andrews it was expected to achieve just over 150bhp. As revealed at Northampton, it was 157! Shedding those 2bhp by making numerous adjustments (including adjusting verniers) cost a lot of money and just ended up with the car not running properly. In the end, we put everything back to square 1 and I replaced the 4-2-1 exhaust from Simon with the standard one, which did the trick. I find Class 2 with the current amount of power really exciting on 1a tyres, and personally I like it far more than I did Class 3 with the stickier 1bs. I don't think I can get my car down on power without considerable expense and would be disappointed to have to change classes.