I have the same bullet, a 6-cav solid mould. It is incredibly easy to cast with. The bullets fall out of the mould with no issues, and the reject rate is very low.
I use mine for «alloy saver» loads in the .35 Whelen. They shoot pretty well (about 1,5 MOA 5-shot groups @ 100m, so far- work in progress).
Those penta points look very attractive, I must say.