Re: NGK's vs Champions
Start by evaluating what you have. Overall set up, balance, prop style, prop conition etc. Does your rig need more bow lift? Tail lift? Then look at your driving style. Are you trimming enough? Too much? Jackplate (if you have one) too high? Too low? Could the rig use more / less setback? Motor performance - is it running as it should? Are you at optimum top rpm with an average load? Even elevation will play a part (we'll assume you're at or close to sea level).
Basically there's no one thing to change. It's an overall thing. The prop will play a very big part but you have to get the most out of what you have to establish a baseline so each change can be judged to be positive or negative.
