I shoot 5 NOE molds. I only have 4 of them cast at the moment as seen below:
My Long Flex likes the .300 Boattails. The .308 Texan SS likes the 97gn HPs and the 59gn pellets. The big .457s boattails are for my .45 Texan SS.
Not pictured are my 65 grain boattails in .25 (actual weight with my current alloy is 60 gns). All of them but the .25s use the pin system to either make the hollow point or the inside of the pellet skirt. How easy the pins are to use depends on the individual mold (or design of that mold). The .300 boattails give me the most trouble to drop the bullet easily, while the .457s and pellets are the easiest. The issue is basically the bullet wanting to stick to the end of the pin when you open them up. Heating up the mold and alloy to a very hot temperature, putting a little spru lube on the end of the pin with a qtip, and having something rubber on hand to lightly tap the pins with, all help.
The .25 is unique in that it uses a pin you pull out from the top before opening the mold. The bullets fall right out of it.
The .300 boattails shoot decently out of both my Flexes, even though they have different twist rates. The Short Flex has a standard 1:24 TJ .300 barrel. The Long Flex has a special 1:16 TJ barrel. Definitely hunting accurate at 50 yards. My .308 Texan SS hates them, which is to be expected because they come out of the mold undersized for it.
My .308 Texan shoots the .300/.308 pellets acceptably well and the 97-99 grain HPs like lasers at 50 yards, as good as the 99 Nielsens they seem to be identical to.
The .457 boattails are so so. Sometimes touching holes at 50 yards, sometimes with flyers. Worth about 815fps out of my Texan SS.