Le Forum Avions Piel, consacré aux Pierres Précieuses. Super Emeraude, Beryl, Saphir, CP80 etc

Bonjour - my first post! Thanks for accepting me into the forum. I am interested in building a CP750/751 Beryl. From reading the forum posts it sounds like there was an update to the structure to strengthen the wing. This may not be included in the early drawings? Could someone kindly suggest where ...