192 sounds too long to me. I would almost recommend you the Mythic in 178 (I am 6', 187lb, and don't find my 178 Mythics short). Snoop is a great ski, so if you like it, keep it. There are too many really good skis, so it boils down the pricer and personal preference.
I think the OP might find the 178 a bit short. I'm 5'9" 160 lbs and I ski the 178
I have skied Line Prophets for the last 2 years as a daily driver. Twins with some side cut and metal. The 100's were great but a little slower edge to edge so I'm on the 90's this season in a 186. They ski short but are a good compromise for a do everything board. When in doubt - demo and take notes.
I'm thinking that I might pick up a set of 184 MR's and ski both, and see what I like better. With the deal I got, I think that the cost of renting them is actually more than the cost of mounting them, skiing them a couple times and reselling them.