Sigil magic, when done right, is very, very effective for me.
I've used runes as well as english with great results, I've also used the Austin Osman Spare method (the one where repeating letters are removed) with great results.
In my experience the initial sigilization process is more important than the charging afterwards. The process, uninterrupted typically takes me 45 minutes to an hour. Distractions during the process take away from the effectiveness. If i have to be cut short i'll typically just trash it and start over when i have time.
After i have my intent sigilized i finalize the sigil on to good quality paper. As i draw the final sigil i imagine my will burning through the pen onto the paper.
If you wish to charge the sigil after you've drawn it i suggest the death pose. For further reading i suggest you find an online copy of Practical Sigil Magic by Frater U.D.
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