Adventurer Conqueror King System: A General Throw System

I've spent some time looking at B/X DnD, Labyrinth Lord and the Adventurer Conqueror King System (ACKS) and I forgot how much I liked the latter.

I'm probably going to be devoting some space to it and have been looking at a general Throw system (my players are used to DnD 5E).

At the moment, I'm planning for general Throws to need a 14+, but if the character has some training or makes a good argument, they will only need an 8+.

I've also looked at importing 13th Age's Saves as an option: 6+, 11+, or 16+ depending on the difficulty.

I even looked at importing 13th Age's Skills system (distribute 7 points between Professions [broad skills], with no more than 5 in any Profession). If I did this all general Throws wold be 14+, but you would add your Skill.

I'm still playing with ideas, looking at the Proficiency's in ACKS, most seem to break down to 18+, 14+, and 11+.

Understand, I've been a DM long enough to handle things with a more Old School vibe, but I've got to get my players ready for that paradigm shift.