Should I carefully follow everything? I am looking for new methods.

Thanks.. :-)

I don't think I agree with that. C4.4.2A is describing a situation that is a little different from what you describe. You are describing a situation with 3 jammer penalties, where C4.4.2A is describing a situation where there are 4 jammer penalties.

The part of the rule that you need is from 4.4.2:

1. The two Jammers serve an equivalent amount of penalty time, per penalty
2. Whenever possible given point 1, there is at least one Jammer who is not serving a penalty

This is still handled the way you described. I find it's easiest to think of jammer penalties as sets:

• White jammer sits for a penalty, beginning set A.
• Black jammer sits for a penalty 25 seconds later, and white jammer is released. This is the second (and last) part of set A.
• White jammer returns and sits for another penalty 10 seconds later, beginning set B.
• Black jammer is still on set A, so is not released, and has 15 seconds remaining where both jammers will be in the penalty box.
• Black jammer is released after 15 seconds, but returns 10 seconds later. This is the second part of set B. White jammer is released, and black jammer has 25 seconds to serve.

Once both jammers are out of the box, you can reset your mental count of which set you are on.

Nashville Roller Derby are hosting their annual Scrimmage-a-thon on July 11th, 2020*. This will be held at The Fairgrounds Nashville in Nashville, TN.

We are seeking officials to staff the 6 scrimmages (each 45 minutes long) and be considered for two games after the scrimmages are over. Lunch and dinner will be provided for officials, with accommodations made for dietary concerns (we won't leave you high and dry if you are vegan, gluten free, etc).

This event is one that has been very successful in getting newer officials lots of feedback. We generally have several high level referees (several with Playoffs and Champs experience) there doing lots of watching and shadowing to give feedback.
This year we are again seeking to increase the number of high level NSOs available for feedback. If you think you may be able to give feedback, please consider coming.

There is no specific application close date, but we will be doing rolling invitations (hopefully every week or so, depending on the number of applications). So you should be able to make plans fairly quickly after you apply.

Apply here

_{* Yes, the date is correct. This event will be held much later in the year than usual.}

I get into that "argument" around here also.  It boils down to "what is the impact that you are penalizing?"

If you are penalizing someone for forcing an opponent out of bounds, or down, during a no pack: that is a loss of position -> Out of play block (no gerunds here). 

If the impact you are penalizing is that the pack did not reform quickly enough and this player was not acting to reform the pack -> failure to reform.

Some people try to say that "the blocker was impeding the jammer, so it is a contact penalty" to make the case for out of play block.  Impeding is only a penalizable metric for illegal blocking zone penalties (forearms, leg blocks, head blocks).