VSL Aviation is led by Seth Lake (FAA Designated Pilot Examiner and airline pilot) who built the ACE Guide to fix a problem every pilot knows: the FAA's own handbooks and manuals are a nightmare to navigate. VSL takes those source documents (the AFH, AIH, ACS, FAA Orders, and more) and rebuilds them into fast, searchable, tab-driven digital references — so you spend less time hunting for the reg and more time studying it.