Methodology

We start with current manufacturer documentation and record exact-model specifications with source links and review dates. We separate published specifications from our interpretation, avoid claiming hands-on testing when none occurred, and update comparisons when manufacturers change dimensions, warranties or product lines.

Primary-source rule

For dimensional and compatibility claims, current manufacturer pages, manuals and warranty documents take priority. Retailer or marketplace copy is used only when the manufacturer does not publish the field and is clearly identified.

Testing language

We do not write “we tested,” “we used,” or similar first-hand language unless that testing actually occurred and is documented.