Note: neither channels nor Donors/Companions ever welcome monitoring of a transfer. Transfer is considered private. Most channels will go to great lengths to avoid a situation where monitoring would be advisable or even indicated.
From: Sime Surgeon, Ch 2. '... "Tecton Transfer Code, Article thirty-three, Paragraph twenty, subsection three. 'In addition to the above cases, monitors shall be employed wherever there is reason to doubt stability quotients.' ...'
(Source: Index card file. Sime Surgeon --- http://www.simegen.com/sgfandom/rimonslibrary/surgeon/SURGEON1.html) A channel who monitors a transfer between two other people, as Digen does for Ilyana and Mickland. Monitor holds contacts on both participants, keeping careful track of selyn flow, woven into the transfer circut --- keeps up own internal resistance high so that selyn flow stays outside own body, but responds to the flow and can control its rate if necessary. May be assisted by a Donor.