> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://support.pld-literacy.org/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Is it necessary to upgrade from Starter Packs to Integrated SSP Kits?

**No, an upgrade is not mandatory.** The Starter Packs are highly effective, and many schools see substantial literacy growth using them exclusively. As your staff gains experience with PLD sequences and testing, the process becomes more automated and efficient.

**When should we consider upgrading?** Think of the **Integrated SSP Kits** as a way to "level up" the teaching experience. They are especially beneficial for schools facing specific challenges, such as:
* **Student Need:** Low ICSEA rankings or students entering with significant learning gaps.
* **Staff Support:** A high density of graduate teachers or high staff turnover where more structured support is helpful.