Just go for it, John. I did it each way in 3 hours from London, plus an hour for the work (and a couple of test drives)
Well worth it.
I'm quite sure it would be worth it! I guess I'm not completely reconciled with putting the extra stress and strain on my already hard-driven (but well loved!) car. If I did go for it; I'm not sure whether I'd go to Mango's or Red Dot, which is a lot closer (even closer to you CF!). I know both are highly recommended on here.
My dilema is worse this week because my car was a the Dealers on Saturday and they must have updated the software on my ECU because the car performs so much better now. It now feels less in need of a remap, and it also highlights the hassle of having a remap wiped by the Dealer. I'm still tempted by a Powerbox; but accept the advice from AO regulars who say a proper remap is much better. Decisions.....decisions.....