Drone Reed Strenght

Hey All,
Been piping consistently for over 1.5 years and am at the point where I can detect when chanter & drone reeds might require strength harmonization. The reeds I play on my chanter are consistently much stronger than my drone reeds (exception = the bass drone). My question is, what is the best way to strengthen the tenor and baritone reeds?

(The problem stems from the 2nd Octave, as those 2 drone reeds cut out at that point)

You can try sliding the bridle to lengthen the tongue very slightly. A tiny amount (1/32" or less) may be all that is required. Some reeds are very finicky about adjustments. Are the reeds cane or composites of some sort? Further adjustments depend on the type of reed.