Paul - It doesnt look too bad when dried out fully. I will post a pic later as the sample is in the office.
There are a couple of reasons for this:
1. Carpet was wet so product "bled" outwith the stained area. I should have dried it off first.
2. I didnt mask the surrounding area when applying so got some over spray.
If you watch the coloured sample video this was done straight onto dry samples and didnt have the halo effect.
http://youtu.be/I9xmsaujcgoIn the berber vid I actually left the product on for over an hour and a half as I was distracted by day to day office stuff and then had to cut the video back.
As we all know when we get to the point of having to use reducers and oxidisers for spot removal colour change has to be qualified with the customer. Not every carpet may behave in the same way.