Hi Raymond,
let me give you a few basic tips that will improve your stability, particularly when paddling in cross wind/chop as this was my first challenge when I started. I asked that questions to Guy Leech and it took me quite a while to decipher his answer. He obviously have me a honest answer, but to the uninitiated, it could be a while before they can work out what's really going on out there!
He said "push your bum into the seat". What this means is :
1. At the start of the catch (say on your right), you need to dig your right heel into the footrest. when you do that. The objective is to have your right leg almost straight and you will feel pressure on your right bottom cheek (call him Bill!)
2. At the beginning of the catch, lock your elbows, slight bend is OK
, but do not bend it further during the stroke, until you start the exit
3. All the power you need for the stroke is in the first foot from the point of entry of the blade in the water
4. You want to start the exit from your knee
5. The stroke itself involves drawing power from your core muscles, NOT your arms and shoulders, there are mere implements in the process, but important ones! Squeeze bottom, abdominal muscles and start to pivot using heel, hip, shoulders until your left hand comes almost straight ahead of your nose. Like a boxer punching out forward. Slight push with left hand helps!
6. Core muscle power comes with hip and shoulder rotation like a coil that you wind up and let go. Core muscles are large and don't get tired quickly as do arms and shoulders
7. Exit should be clean and quick, you want the left blade in the water as quick as you can, they call it the stroke rate, rythmn
8. Now come the crucial part, relax the right leg and push your left heel into the footrest, straighten the left leg and lock left bum cheek into the seat (call him Ben!) as the blade hits the water for the catch on the left side. It is precisely this synchronization that keeps the craft stable, you may find that this may take a lot of practice. I would focus on just the synchronicity part first, the stroke can be corrected later once the craft is stable. Literally you are pumping your legs like a cyclist and punching forward like a boxer horizontally at head height.... AS you dd for the right stroke, tighten abdominal muscles, rotate hip, shoulders, lock elbows, punch right first to head level, start exiting blade as it reaches knee level, clean sharp, quick exit
9. Do yourself a favor, please look up re-entry techniques on the internet, as it is crucial, all it takes is for you to fall off more than 3 times and you will be so weak that re-entry becomes a struggle and you may find yourself in trouble, been there done that!
10. Wear a leg leash and a life vest with a marine whistle in the pocket and stick a day flare on your deck, you never know! it may look macho to paddle without a vest but it may save your life, there's plenty of stories out there of the internet about this topic
It may sound like much, try one thing at a time and add the various bits as you see fit and you will be flying down big swell offshore in a year's time, it is possible! I tought a tall overweight guy who started from scratch in one of the most unstable ski in the world, the Fenn Millenium and he is an accomplished slim and fit paddler now, came top 50 in the Ocean series not that long ago. All it takes is some will power and passion which you seem to have. Soon you will be catching runs and chasing wild conditions like I do now. Nothing beats paddling downwind in 25knot plus & 1m chop, I reached 18+kmph that day! you can do that too!
Have fun, just remember Bill & Ben! And let me know how you go mate.
JDF
ps. I did take 6 lessons at the very beginning, then practiced various techniques on my own in various conditions/ I also watched Rambo's professional videos of competitions around the world, you will learn heaps from Rambo's Locker (my favorite of all times, THE DOCTOR 2009)! Take care and have fun!