Alan here:
Peak horsepower can mean diddly ****.
Power is not the be all & end all - as Geoff has proved.
Geoff won the series - well done mate
Its all down to good riding too.
Best prepped bike could be at the back, if rider not good enough.
Andy rode snot with 48 hp at Cadwell first meeting and was 6th & then 5th - A bike running far less then many behind it.
Same scenario: Andy cops a 2nd & a 5th with the Snot (now running 620 & 65hp) at Donny - Doug as a complete newbie rides the same bike at Brands, comes in 30th in each race.
Experience is what counts
I'll shut up now, and leave you to it
Alan