As long as IK/KH/Q/W/T16/20L (Original 1.1mm) once is gapped to 0.8mm => more power and performance can be expected (immediate effect after installed).
Measurement of plug gapping to 0.8mm will be shown to buyer during order collection.
since Altezza half cuts are rare and hard to find, maybe we can pool in our resources and share where we can obtain parts, preferably half cuts around Klang Valley and other states...