I think the word "Iconic" applies to the 358477.
In my opinion, there is no better "do it all" bullet for the 38 Special.
A 4-cavity iron mold for that bullet is about the perfect balance between production volume and weight of the mold. Again, personal opinion but I don't think I'm alone in that opinion.
I went with the SAECO four cavity version of that design (#382) which isn't an exact copy of the 358477 but it's pretty close.
The RCBS 38-150 SWC is another design that is in the same ballpark with the 358477 and an excellent mold. Unfortunately, RCBS tops out at two cavities for any mold. RCBS uses a very good iron alloy, and their machining is top notch but if you want 4 cavities in one mold block - RCBS is a no-go.
Ben, I would agree that with that mold, you are set.