I`ll chuck my pennyworth in and I can only relate to what I`ve collected, I have at least one of each and what I was told years ago by a Drennan rep. It may be a crock of whats`it, so please be gentle. After the various proto types slight differences in performance,colour etc, I was told that the MK1 was the original tench float this is obvious, they all had a black fabric type weave, with the gold edged whippings on the butt section and ring, full cork handle, but it had three incarnations.
1)The Basic standard Drennan Float, with the statement on the underside of the rod, in gold lettering, with coloured stripes - Drennan-Tench Float-12`9” 3-6Ib reel lines specialist power action. Nothing on the topside of the rod
2)The second version , now written on the top side of the rod, Drennan - Tench Float 12ft 9” (all coloured), On the underside , 3.88m performance guide, sensitive float control 3-8Ib plus etc etc.
3)Same as the second, but had single legged rings. Same line rating & performance
I was told that the Drennan Super tench was the MK11, this was the black/grey blank, with a slight move colour at the edge of the whippings. As for the rest I don’t know, I`ve only seen them in the rack.
If this is wrong, could someone enlighten me, its a bit confusing!