But he is feeling strong and more confident, having proved last weekend that he could go pretty fast despite his handicap in this highly competitive championship.
"I feel like I can race this weekend," he said.
"I'm definitely here to race, not just to collect points."
Christchurch rider Dennis Charlett, 45, leads the championship after racing his Suzuki to victory in all three races at the GP meeting. If he can maintain that form he will clearly be hard to beat.
Hard-charging Nick Cole from Hamilton, who won the international Suzuki Series in December, finished second each time at Ruapuna on his Kawasaki and he will be fired up to cut back Charlett's points lead.
But the standard of New Zealand motorcycle racing is now so high that there is a host of fast riders capable of challenging for the top placings.
These include Suzuki riders Hayden Fitzgerald (New Plymouth), Scott Moir (Taupo), Craig Shirriffs (Feilding) and Ray Clee (Kumeu) and the Honda team of Tony Rees (Whakatane) and James Smith (Christchurch), while Australian Linden Magee has shown strong form on his BMW.
In 600cc Supersport, reigning champion John Ross of Christchurch leads the series but fellow Cantabrian Alastair Hoogenboezem, also on a Suzuki, pushed him very hard at Ruapuna and Seth Devereux (Christchurch) won a race on his Kawasaki.
Other leading riders in this class include Taupo's Toby Summers on a Yamaha.
Other championship classes are Superlite, Pro Twin, 250 Production, 125 GP and 250 Mono (which race together), and Sidecars.
Each class has qualifying and one race today, and two races tomorrow.