What is the most important piece of kit for going fast
You really can do a lot with the kit you already have
There is not one single piece. It’s much more the total of it. And it’s not so important that you always have the newest gear. Just take what you got but try to trim it perfectly. There are so many factors that it’s actually bad to get new gear every year because it usually takes you a full season to figure out what works well where. So take what you have and start researching. Perfect sail trim, downhaul and outhaul trims, different masts, different boom height, length of harness lines, mast foot position, strap position, fin choice… You really can do a lot with the kit you already have.