Original poster: "tesla by way of Terry Fritz <twftesla-at-qwest-dot-net>" <tesla-at-paradise-dot-net.nz> Intersted in firing points I note: 90deg minus 30deg and 90deg plus 40deg on your SRSG Is this what you meant ? Tnx Ted L in NZ Subject: Re: New 4" Coil: MMC blows MMC Away?? > 300 BPS SRSG breaking at 60, 90 and 130 degrees (wierd, but seems to work)