Split Intelligence Damage from Gems still not affected by Damage Dropoff, Hit your Mark now buffs Base damage, which includes Attunement perks and Elemental Split Damage, Damage Dropoff overall still extremely low.
Not sure what AGS is thinking, but I can guarantee that you’re going to have people on the forums complaining about Muskets the exact same way you do now. If you can’t balance it correctly, maybe it’s time for a full rework.
Credit to @DukeSloth for Testing once again