Might take you a while to get there
The only benefit in climbing to such a high altitude would be reduced fuel burn & a decent tail wind (if any) over a long flight, say >500nm. For a shorter flight there's not much point in wasting time & fuel climbing up there.
Also depends if you have nice enough weather in the first place to get to 10k!
Must be a bit chilly in a Turb though
Smithy