I am 175cm / 66kg / 30” waist. I paddle K1 and a padded out S/fish for heavy days and a CS Vault. The Vault is a genuine low volume boat. Much less bulky than many And knifes through instead of needing to be muscled over waves. The Vault has a fantastic (for me) ergonomically comfortable and correct seat - but I also pad the thighs out (yeah - Hein laughed - I’m that guy). I use the Epic thigh pads in the Vault as they are neat, clean, adjustable. They come with several inserts - just choose how many / how thick you need for good contact. I understand that CS skis can come with underslung or flip up / off the back rudders with a quick swap. Some recently delivered for use in the Avon (flooded - shallow - rocky) River descent Race recently in W Aust. Beautifully made boats. I am doing OK in the Vault in my division in Marathon on flat but also very happy in the local Harbour and outside the heads every now and then...(still working on that). I would recc you paddle a Vault and also maybe try the very recently released Boost (Low Volume) if you can in your area.
Current: Carbonology Vault, Carbonology Boost LV, Vajda Spirit K1
Previously: Fenn Swordfish, Sladecraft Sonic, Older K1, Elliott Vindicator, Elliott Marauder,