Whow, that's a big step to the last cog.
Which cog did you remove ? And how's the shifting ?
In my setup, I replaced the 15T and 17T with a 16T and added a 42T cog. But the shifting was dramatic. Shifted good for the cogs, 11T - 16T, but then .... or shifted good for 19T and 42T. I guess the 16T had a wrong thickness. Now I'm riding with a Sunrace cassette, 11-42T 10sp.