Or, for 3/4" rigging ropes?
I'd learned splicing DB class1's with Blue Moon (11.7mm climb line), but since then have done a lot more ropes including 1/2, 5/8 and 3/4 polydyne (bull ropes and, for 3/4, for anchor-slings) and I simply copied the same 'ole "Samson class-1 DB splice"...