On that relief sir i guess mas tumaas yung gap ng strings sa fret on middle frets kesa sa frets from 12th onwards but i havent measured it. But of course with the said relief, overall tumaas yung action and yes sir its easier to bend notes sa 12th fret and onwards kahit mejo tumaas yung action. Or its just a feeling
Its not just a feeling. More relief = less string tension. That's why its friendlier to play.
But do understand that lower tension also have an affect on tone. Its up to you to find a balance that works for you.
If you like that less tension feeling, but want to be safe with the neck, there are many ways to achieve it:
- remove any neck shims and lower the saddles. this effectively lowers the break angle at the saddle, which lowers tension.
- remove strings trees. this lowers the break angle at the nut, which lowers tension.
- use slinkier strings. ex: ernie ball slinkys have less tension compered to dadarrios of the same gauge.
- and the most obvious: lower gauge strings