You are quite correct. A very limited comparison would mean nothing. However if enough people replied, the more data collected the more accurate it would become. For instance if 100 people replied all of which used fresh baits and none could match the catch rate, or get close to it, it would suggest that at worse the bait I used did not have a bad effect and at best may have contributed to the catch rate. I rate myself as a competent carp angler - I've seen many better and many worse, so I do not believe my catch was due to superior fishing.
The first week of the two mentioned I started off on maize and tigers. My catch rate massively increased when I swopped onto the Rosehip and Remedy baits I had been feeding, admitedly I tinkered with the rigs at the same time. I had no air dried non preserved baits to try and non air dried baits would not survive the attention of the chats even when meshed in plastic netting (an example when readymades have an advantage?). I was followed onto the lake by a party from fishing magic (2 years ago), what did they catch and with what bait etc.
The first week of the two mentioned I started off on maize and tigers. My catch rate massively increased when I swopped onto the Rosehip and Remedy baits I had been feeding, admitedly I tinkered with the rigs at the same time. I had no air dried non preserved baits to try and non air dried baits would not survive the attention of the chats even when meshed in plastic netting (an example when readymades have an advantage?). I was followed onto the lake by a party from fishing magic (2 years ago), what did they catch and with what bait etc.