"Only the parts you need" is a GURPS podcast hosted by Legendsmith and EnragedEggplant. This episode's topics are ST/damage systems comparison (Legendsmith) and magic systems comparison (EnragedEggplant).

0:22 - ST/Damage Rules Comparison

10:00 - Magic Systems Comparison

No School Grognard's Reduced Swing Rules - http://noschoolgrognard.blogspot.com/2013/04/adjusting-swing-damage-in-dungeon.html

Games Diner ST Rules - http://www.gamesdiner.com/rules-nugget-gurps-better-cost-for-st

Unofficial GURPS Magic Errata - http://technomancer.jargon-file.org/UnofficialGURPSMagicErrata.pdf

Summoning for RPM - https://www.ravensnpennies.com/boil-bubble-spell-kits-casters-necromancer/

This episode as an MP3 - http://www.mediafire.com/file/atqxa53bmg0z1kq/Only_the_parts_you_need_%25231.mp3/file

This episode on YouTube - https://www.youtube.com/watch?v=bUhSj3IOF0U

EnragedEggplant's GURPS Blog - https://enragedeggplant.blogspot.com/