In terms on paralyze build, I am a wisdom build with emphasis on getting enchantment as high as I can. In reaper, I have a wisdom bonus of 50 and enchantment bonus of 37. Add the 20 to that and you get 107 paralyze arrow (I think that is how it is calculated). The other way I was told to check is to take a lvl 1 enchantment spell and add 20 to the DC. So, hold animal in reaper is 98 DC and 20 to that would 118. So, I think it is 107, but not 100% sure.
Anyway, my point is that my paralyze is pretty much no fail at that point. As long as I get a good hit, it works. It works in high skull reapers, etc, as equally well. I am not sure why at that DC it works better than what my guildies are telling me about enchantment DCs for casters, but it is what it is. I am doing a moncher split 12ranger, 6 monk, 2 cleric. 2 cleric gets one more enchantment DC point (else I would do rogue or fighter instead). Total wisdom score is I thik 102 in reaper??? Not my final build as I probably will go deep gnome for additional wisdom options and the small size benefit of shot angles with IPS.
I certainly do not have the burst dps you have, but I do see 100K when the stars align... lol. I am happy with my base damage though as it is mostly over 1k non critical hits outside of reaper...