Original poster: "tesla by way of Terry Fritz <twftesla-at-uswest-dot-net>" <tesla-at-paradise-dot-net.nz> Hi List This mistake is one I can share. Lost my Tesla Design notebook recently (much loved design notes of several yrs inside) Found inside the newly made 12" Flexiduct Toroid. If I want it I've gotta cut the darned Toroid open. Stupid error of the week Best Ted L in NZ