Technic Solder helps you lower bandwidth usage, keep old versions of your modpack available to users and provides faster, streamlined updates. You won’t know how you managed a modpack before you used Solder.
Technic Solder provides a method of distributing your mod packs that not other launcher on the market has; it is the ability to do incremental updates. The FTB, ATL, Void Wrath, MultiMC, and Magic Launchers do not have this ability requiring your players to download the whole entire pack each and every time you do an update.
Follow my pages, posts and videos on managing Technic Solder client packs and servers.