I double wrapped when I used butcher paper. Helps with the liquid, but still not as tight as foil.
Put a little cut in the paper before trying to probe for temp. Sometimes the paper is tough to pierce. Probe the flat where the slices will come from.
Smooth Smoke BBQ Team, KCBS CBJ, 2-WSM, Cajun Bandit Conversion, wsm 2880, Smokey Joe Mini wsm, Old Country offset, several kettles.