I think you need to buy a board the right size that fits into your Quiver ,and that fit the sails you want to use ,
If you are going to sell the Gecko i would get a 115 or similar size to that ,a slalom board in most cases will plane quicker
than a freeride ,and then there is freerace also to consider ,
i also own a 120 Patrik Frace ,really nice in chop and fast enough to give you the speed thrill ,I'm sure the fanatic blast will
also have that ,you could go straight for a full on race board if you are seeking a rush eg,,116 litre manta ,or 113 Isonic Starboard ,
These are just suggestions ,but I remember i always brought freeride boards ,but i was looking for something different ,
After buying a full Slalom board Which cost a packet ,I found speed ,and loved it ,modern day slalom board are all about control at high speed now and are a lot nicer to use than the slalom ankle breakers of the past ,just something to think about

there really is so many nice boards out there to buy ,stocks are limited in the shops though ,hopefully more shipments are due soon .