GreatKhanArtist wrote:
I'm not the expert by any means, but I think the oval base replaced the normal round base because of the way these guys are sculpted. I unboxed Bolg and he's HUGE. The LoTR wargs look like puppies next to him. He's also stretched out. A round base would probably work, but I'm not sure about having models touch his base without the warg being in the way.
Lordofthebrownring is talking about Azog and the white warg not bolg and his standard fell warg.
to answer the question the white warg must remain on the 50mm base even when Azog dismounts, in other words you either need to go choppy on azog and magnetize him on or you need a duplicate of the whitewarg just minus azog on top