If someone could get in touch with the person who bought the e15/a14 hybrid on ebay recently for biscuits, we could all know how to use an e15et head on an a series before its too late
as all the e15et heads are being trashed and re-used by exa owners as they are rare.
Although not as good as the AY, its a least possible.

The other choice is we get Simon to make kits for the bike head he is using
but Honda bike heads are not cheap and neither is the work involved.