all i said was to not rely on IB-DP with tsubaki because of low reward and high risk/randomness. the random generic ragna players you fight won't intentionally bait it, but being randomed out by GH/HF can hurt. treat it as a gimmick to use sparingly, because really, IB DP is just that.. can't forget about the actual execution required for it as well, and how certain things just ruin attempts to IB
and D DP is always unsafe - you are pretty much just wasting stock if you cancel to j214d j236d on whiff or block afaik. same deal with being beaten by GH/HF, although at max range both F1 dps will beat GH, and B/C DP beats it at mid range