What Rock said, k.i.s.s. I ain't used NGK's but I've read (on here) nothing but good reviews on them. trick plugs are snake oil however trimming back the ground electrode but you keep enough bend so you can adj the gap(which unshrouds the flame kernel)/clocking the gap (there's a name for that)/experimenting with different gaps does work & the only trick I would consider trying is filing the center electrode to a point (that would drastically reduce their life but power is power). At the very least you want all edges sharp/not rounded (reduces arc over required voltage which is critical at higher RPM's when there's less time for coil saturation). Grab a point file (if you're old enough to know what they are ). To (really) kiss, NGK plugs gapped at .035" & regularly file the electode edges to keep em sharp, a little antisieze on the threads