There are many "games" that are played with what a carrier wants from count, and after route cuts are made due to a "gaining" count like a lot of us have just had. These "games" or twists and turns one makes depends on what outcome you want. More money is generally what everyone wants, but some want less work, possibly due to injury/body wear, or more work (J/H-route) in order to get more money.
If you, as most, just want to maximize the amount of money with the least amount of work you should have guessed that your route was going to grow before hand and made some adjustments to your edit book. Although you are only required to remove customers from your edit book if they have a permanent forward that is past 90 days, the USPS never penalizes you (that I'm aware of) for having removed customers on a temporary forward after 90 days, or sometimes even close to 90 days. Doing this before or during count could put you at an advantage if your route moves into the overburdened status. As an overburdened route you will be cut back to a 43-k as a general rule. If after that cut, those customers that you removed from your edit sheet returned, your route would "grow", and if you have enough customers returning, this would put you into the next hour. Even if the USPS policy is to cut you to a 43, you could end up being a 44+k in a month or so after the count.
If you don't mind working a J route you could ask your pm to cut you back another hour to a 42-k (they are usually agreeable to make more of a cut than required) and as long as your route is below 50:43 for the week, and you are eligible, (able to have signed the high option on the final count sheet) you can take the J option and receive a 46-J route. You can do the same for a J-> H as long as your hours are below 46:29 you can become a 46-H, by these methods you can maximize your pay hours, with anything over 40 being overtime hours, again increasing your pay.
These are a few of the legal ways to max out your pay, there are many illegal ways which may jeopardize your employment completely and I would not recommend, but have seen carriers get away with many even when their managers knew what they did.