12-strand to double braid splice

[mrgnstrn]

Where would I find info on how to splice a high-tech 12-strand to a double braid?

Application is spinnaker halyard on a 35' masthead rig.

I don't like the idea of buying 100' of high tech line, when only ~50' of it will be loaded and actually need to be high-tech. The rest is just there lying on the cockpit floor.

Cartoon of the splice I would like to do is here:
http://www.apsltd.com/c-1539-splicin...heetsguys.aspx
(scroll down to the one labeled "core-to-core bulk splice")

Are the rudiments to do this in Riggers Apprentice?
Is it shown explicitly in "Working Rope"?

Thanks,

M