Copied the freshly lvl 50 em/bio scrap to beta and got her all tricked out. With Assault Core: 1:40. Without it, 2:20. Would be ridiculous if I never missed. To be honest, though, I'm not sure I'll ever really build her out on live. While the pylon time is nice, bio's survivability is lacking at the high end. Although, she's got 2047 HP and Ablative Carapace is adding another 1096 Absorption, so that ain't nothin to sneeze at.
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Also, I'm a dumbass. Forgot to turn on Offensive Adaptation.
1:20 with assault, 1:35 without. Honestly, that's not much better than what my claws/bio scrapper gets.
Come to think on it, it makes sense due to ET and TF not properly critting.