Chris, Jaroslav & Yeomanbowman,
I had thought of a slightly generous board 6 foot high x 3 foot wide with a 12" diameter black spot placed 12" above centre (since having a spot to look at is conducive to better shooting rather than leaving the whole thing blank).
I had also thought of removing the top left and top right 12" squares leaving the centre one to represent the head, but thought that this might be an unecessary complication and churlish to boot.
Also I appreciate the offer of M. Aubergine but fear that too many glancers might lead to further discord.
I think the KISS approach better in principle.
A simple way to record progress or standing would be to count only hits and keep an accumulating average.
So shooting six arrows within one minute, 10 attempts scoring say 0, 1, 3, 4, 1, 2, 6, 5, 4, 3, would give an average and a score of 2.9 out of a possible 6 and a standing of 3, adjusting to the nearest whole number.
This system is only intended so that progress can be recorded and communicated.
There is another notion that might be fun, but I am loath to suggest it as some might find it too intimidating... :-)
Rod.