Did some calculations, did 'em for unloomed items, did them for 10 and 6 pt/pd, and 100 effective wpf.
Longbow, 6pd, 57,04.
Longbow, 10pd, 74,4.
Jarids, 6pt, 64. 6,96 more than the longbows.
Jarids, 10pt, 80. 5,6 more than the longbows.
Spears, 6pt, 57,6. 0,2 more than the longbows.
Spears, 10pt, 72. 2,4 less than the longbows.
Javelins, 6pt, 52,8. 4,24 less than the longbows.
Javelins, 10pt, 66, 8,4.
Don't care whether the pd is reduced to 10% or the pt buffed to 14% or maybe them both becoming 12%, but I do not believe the system is currently fair.