Simon - both the Vicik or Jeffrey would fit the bill, depending on your style of skiing. Both can be skied aggressively and would suit you in a 186cm, but the vicik will give you a bit more edge hold and stability at speed, where the Jeffrey will be a bit more playful and jibby when you want it to be.
We have both the 186cm Jeffrey & 186cm Vicik at The Plankey in Bend.
1441 SW Chandler Ave, Suite 101
If you get a chance, stop by and check them out in person as I find that it is often helpful in determining what is the best option for you. If you have any questions give the factory a call - 503-206-5909. Thanks!