Spark gives 9430str for 20seconds.
Primordius talisman gives 1975str per stack for 10seconds.
What ramp up time are people seeing? on my 530 one (bagspot for tank os for now) and it took well over 1 min to get up.
Primordius always procs every 15sec or so and it's rng if it refreshes itself (10sec duration) I'm seeing at the very least 4 procs per minute for 40sec of 1975str, that's comparable with wep enchant.
I'll also leave this log (wipe lei shen progress) showing talisman with 54% uptime on a 8min attempt.
Even if that was 50% uptime at 2k str (1 stack) it's not bad..