Does any one have solid reason to say (e.g., based on oral teachings from a qualified vajra master or from reliable scriptural sources) whether or not having a vasectomy would interfere with a practitioner's ability to successfully engage in tsa-lung-thigle practices? I have 4 kids and my wife any I definitely don't want more. I've been waiting on an operation until I've got some info, and I've understandably had difficulty locating any. If you have leads or direct sources, please PM me with your response and the sources. I have received empowerments that would allow me to discuss this, and I can provide relevant info if asked, but due to personal respect for secret teachings and plain cautiousness have not read texts on my own. Thanks!