All the details and booking can be had on the TR Drivers Club web site. Here is the direct link. We know about the '£' character being replaced by an ASCII code on that page but other than that we have all the current information present and correct.
http://www.trdrivers.com/the_bullet_run_2016.html
This looks to be a unique event from a Triumph club and because this time around the Triumph Sports Six Club are promoting it too along with the TR Register it is open to all comers. Space is limited so don't hang around too long. Initially we thought 25 cars but with the interest already it's looking likely we'll have to increase that number to 40.
Saturday night at the hotel is still being planned but looks set to be a major highlight. The recommendation from me is to book two nights at the Ettington Chase - it's a lovely venue and we should all have a great time there together.