18th Sep 13 Hi Andy, Bit of feedback in my DTUK box. Superb service and very fast delivery. Box arrived on 4 + 0 as promised and I went straight to 4 + 1. Very smooth and wide power band which is exactly what I wanted. Goes like a train and more like a petrol turbo in delivery. It’s lost a bit of the low down shove but mid and top are excellent. Three figure speeds come up very quickly! Not getting any smoke that I can see do you think I should try 4 + 2? Cheers Matthew.