Originally Posted by SMK77

Your dead year can be year 1 or year 2:

I qualify in 2022 for SEN with expiry 2/25.

I can requalify in 2023 (year 1) and don't fly in 2024 (year 2). New expiry 2/27.

I can make 2023 (year 1) my dead year and qualify in 2024 (year 2). New expiry 2/27.

For people closer to Lifetime it may be convenient to have the SEN in the bag till 2/27 and then earn QP from 1.1.2024 as they please, e.g. when convenient and where most value for money.