Thanks for the reply steve2k it's very helpful, I found on Wiggle the thing about 5% which sounds much better. As for the breakfasts I only get 1 a year so far so I think I may chase this further.

Also where on the south coast are you and are you doing the Wight Diamond Challenge this year. If not I recommend it highly, I've done it 5 out of the last 6 years and this island is a lot hillier than you would expect for somewhere only 23 miles long.