Does this strategy work for Claude’s usage limits?

I’ve noticed that Claude seems to reset my usage to zero exactly 5 hours after my first message of a session. For example, if I hit a limit and it says "come back in 2 hours," once those 2 hours pass, my quota is back to 0% used (full capacity).

The strategy: If I have a heavy workload starting at 8:00 AM, would it make sense to send a "placeholder" message at 5:00 or 6:00 AM to "trigger" the start of a 5-hour cycle?

The goal is to ensure that by 11:00 AM (mid-workday), the system triggers a full reset back to 0% instead of leaving me blocked until the afternoon.

Questions:

1. Does the 5-hour window start from the first message sent, or is it a rolling "sliding window" for every individual message?
2. Has anyone confirmed if the reset is always a full 100% refresh or if it can be partial?
3. Does "compacting the conversation" make the messages in that thread "heavier" against the quota?