A totally non-comprehensive list of other builders and helpful links I’ve gathered while planning and building
Sling Builder’s Facebook Group
Craig’s Sling 4 build log – One of the first build logs of a Sling that I found, although for a Sling 4, not a TSi.
Matt’s Sling TSi build log – Matt is a builder in NY, much farther along than I am.
Jetshine’s TSi build log – A Sling 4 with the TSi engine. Very technical analysis.