Hmm.. Well Bieker put the first foils on his B3 to increase water line "length".. If you look at his foil they
1:are assymetric...
2: Above half way up the rudder..
3: yes they are movable to maintain water flow aft of the stern.
BUT the pitchpoling issue wasnt the driving force behind Biekers motivation.. The B4 has a fuller bow and hull shape to the B2 & B3.. The bows of the I 14 is regulated by a mid length mininium measuring point. Since skiffs have a wedge shaped hull profile they cant really go any finer than the B3 under the current rules.. In fact the B3 is fuller than the earlier "Zero" hull which was legal under the old Australian Skiff rules..

I dont know if Bieker's thoughts are still on the I 14 website or his home website..

After Bieker was Luggy.. Who built the "flying" I14.. His foils were designed to fly so his original foils were at the base of the rudder and again assymetric to generate lift..
The lifting foil was replaced by symetric foil..Again at the base of the rudder becaues the rudder was already set up for foil at that position..

Must admit I havent kept up with the current state of play.. BUT Biekers foils are NOT designed for anti-pitchpoling.. Pitchpoling is secondary..