full burys with thin amsteel is a bear, good luck, if figure out a secret let me know
I don't know a secret, but it doesn't seem too difficult for me with 7/64 or 1/8. There are a couple things you can do to make it slightly easier...
1. Use new amsteel helps because it is easier to scrunch it up to accept the buried portion;
2. Keep something handy that can be used to widen the amsteel threads helps a bunch, especially getting the first inch or two into the bury, I use a knitting needle cut-off;
3. Wire fids are where it is at for me, a short fid gives me fits at times;
4. Don't be afraid to make it in short increments vs trying to bury the entire thing at once - the key to this is ensuring that when your 'bury' exits the length of amsteel you 'rebury' it at the exact same location (even a single thread can cause new cuss words to be created). When you have to open the hole to get your bury back into the rope use something to widen it slightly like a fid, knitting needle, swaged aluminum arrow end, pen cap, etc.
5. I haven't found a BAD time to stop what I am doing and scrunch up the portion of amsteel yet to receive its buried portion. Pushing a wire fid through new amsteel is easy; pushing/pulling the internal bury of new amsteel before you scrunch it up can make things difficult, especially the longer the bury is.
*in case it isn't common knowledge the term 'scrunch' is a doctrinal term when dealing with amsteel, or was that with Amstel? Ah, forget it...