I have both, the S-1 and the A-1 from Fallkniven! GREAT KNIVES; really hard to beat! Concerning the S-1 and it's handle,....yes,....a little bit small. I have really big hands and nevertheless it would fit for almost any occasion! Compared with the A-1 I can say that this handle fits much more, provides excellent feeling and control, but it is a little bit softer and sometimes I wished, it would have been made also form Thremorun E, the S-1's handle material. The Kraton handle is in my oppinion a little bit too soft and after the experience I made with it it is not as durable as the Thermorun handle of the S-1! Nevertheless,....... the A-1 is a wonderful knife!
Don't know if anyone else had made the following same strange experience: After cleaning the A-1 with hot water the handle becomes a little bit softer than it is originally and you can find a very little gap between the tang and the Kraton handle and water comes in and causes little rust,..... not much, but a light brown discoloration is noticeable and it takes a really long time to get the water out there! Never had this "problem" wit a F-1 or S-1!
I solved this problem by applying sentry solution into this little gap and had no problems anymore!
Nevertheless,..... the A-1 is one out of my numerous knives, I would not miss anymore! It is, without any doubt, my no.1 outdoorknive.