I too always cut through the inside passage unless it is too foggy out. As mentioned previously, there is a submerged rock (submerged only at high tide) about 50+ feet across. It is pretty easy to spot even when mostly submerged by the way waves break on it. At low to mid level tides it is fully exposed.
When the tide is running hard it gets pretty choppy in there for a couple of hundred yards but take your time during choppy moments & you will be fine. Headed there for a week next weekend.