I agree - the NMS handiwork looks fantastic!

Getting 300+ HP is fantastic too. Karl may not do individual flow testing on the CVH, but I would bet did the port shaping developments with a flow bench.

If someone says they had thier heads gas flowed - means just that - flow testing, and with testing comes results. Am I wrong?

I am having a cylinder head developed here in Canada, where there is no previous port work done on a CVH head. That is why I am looking for comparisons in the UK.
NMS does fantastic work, and I would like to see how my Canadian cylinder head specialist compares. There is certainly no slagging what Karl does - more admiration!