The LDS church adopted and modified the BSA program to meet the needs of the LDS church. The LDS church was the first institutional sponsor of the BSA (1913) and is permitted to adapt the standard BSA program in manners which other institutional sponsors are not. The LDS relationship is so different that it merits a comprehensive website unlike those for any other institutional sponsor.
At the most basic level, the LDS BSA program is part of the Aaronic Priesthood program and prepares boys for their mission. Here's the LDS Scouting "Green Book" and the current Scouting & The Church of Jesus Christ of Latter-day Saints booklet.
Youth leaders in LDS Scouting are not selected by the youth, but by the bishopric. Cub and Tiger programs for six and seven-year-olds don't exist in the LDS Scourting. Unless something has changed recently, eleven-year olds are in a special program in LDS Scouting; there is not a valid comparison to "New Scout Patrols." LDS Scouting is designed to move Scouts out of the Troop and into a Varsity Scouting team at fifteen; hence the pressure on LDS Scouts to earn their Eagle Scout rank before fifteen. We could discuss this all day.
LDS Scouting leaders are called to the position by church leadership, rather than volunteering. The bishop has primary responsibility for training; not the BSA. When trained by the BSA, most LDS training programs are held specifically for LDS Scouters. LDS leaders are often unable to attend BSA training session even if they want to do so; the training session may be a week-long session or a weekend session that involved camping over and meeting on Sundays.
The average LDS Scout leader has a tenure of 7-9 months; the average non-LDS Scout leader has a tenure of 5-12 years.
Those aren't my figures; they come from BYU professor Brad Harris, who was a professional employee of the BSA for 23 years before joining the BYU faculty to teach scouting education classes.
LDS leaders are often not trained or are trained by LDS religious leaders instead of the BSA. This has resulted in LDS units having a disproportional representation in cases of deaths and lost Scouts.
While working with Health & Safety in the mid-2000s, reports that LDS Troops represented 14% of Scouts but nearly 70% of fatal accidents caused the LDS Church's general Young Men’s presidency to create a presentation on safety, emphasize training through the BSA, and make visits around the world speaking to LDS Scout assemblies on safety.
LDS Scouting is a form of Boy Scouting, but it's different than traditional Scouting. That said, there are some excellent LDS Scout Troops and some extraordinary LDS Scout leaders with decades of tenure as leaders.
LDS Scouting is nothing less than co-opting the program by the mormon church to brainwash young boys into swelling the membership stats of the mormon church. It's insidious.