[Powers] IT:DR - round twice?

[CeeDub]

Salutations!

P53 says "divide the injury [...] after subtracting DR [...] and applying wounding modifiers."

B378 says "always round down" when applying wounding modifiers.

So, is this the correct sequence to calculate final injury:
1. Roll damage.
2. Divide Damage Resistance by Armor Divisor, if applicable, round down.
3. Subtract remaining Damage Resistance from damage.
4. Apply wounding modifier.
5. Round remaining injury down, as per B378.
6. Divide remaining injury by Injury Tolerance, round down, but take at least 1 point of injury unless IT:DR is Cosmic.

Is step 5 correct or should it be omitted?

Thank you!

[Kelly Pedersen]

Step 5 should be omitted. Injury Tolerance (Damage Reduction), like other Injury Tolerances that reduce damage, effectively is another wounding modifier, so it should go with everything else in Step 4.

[Anthony]

Rounding twice isn't needed, (divide by X, round down) followed by (divide by Y, round down) is always the same as (divide by X and Y, then round down).