Proc rate calculations in 3.4.6 off?

[Caulderone]

PPM calculations seem to be off in 3.4.6.  Noticed it in several powers, the % is too high.

 

Example.:  Sentinel DP Executioner's Shot, 59.62% slotted recharge, Bopper's CoH Tools & Formula's spreadsheets shows 59.5% proc rate (63.737 avg damage).  Planner shows 75% chance for 80.32 avg damage) [on a 4.5ppm purple proc, for clarity]

[Parabola]

Just coming here to say the same. Mine is showing a fixed proc rate of 58% for a 3.5ppm (75% for a 4.5ppm) regardless of base power cooldown, slotted recharge or cast time.