I know no one cares about DT armor but I have FINALLY crunched one Sovereign Rune of Spell Penetration and have to give this breakdown... so you can feel sorry for me.

269 crunches to get that one rune from dupped Tempest runes.
Years ago I had ran Prey on the Hunter (if I remember correctly) 467 times.
155 = 467 tempest runes / 3 -three runes to crunch into Sovereign
Break unwanted Sovereign into an average of 5 Eldritch runes, crunch 3 for Tempest, crunch 3 more Tempests for another Sovereign.
86 = ((
155 * 5)/3)/3
Repeat again
47 = ((
86* 5)/3)/3
Repeat again and I'll stop there for sanity's sake
26 = ((
47* 5)/3)/3
Total Sovereign Runes legitimately:
314 = 155 + 86 + 47 + 26 (technically a few more but... Meh)
314 Attempts!!! And not a single Spell Pen. rune!!!
Add that with the dupped materials:
583 Attempts! = 314 + 269
But Wait! Lets see how much time I wasted trying to get this legitimately.
I was able to do 9 min. runs but lets round up to 15 mins (non-perfect runs, crunching runes, etc).
116.75 hours = (467 runs * 15 min run) / 60 mins
I dupe because of butthurt.