TB-29 (virginia) in RA 1.39 +fix#1
As you see, TA sensitiveness is higher in RA 1.50 (-13 vs -12) but max speed is lower in RA 1.50 (14kts vs 20kts)
But main difference is new feature in RA 1.50:
Now all submarines Towed Arrays are needed to be fully streamed for max effectiveness. No more running with TA streamed to 1/4 of lenght.