Thank you everyone for the input on my last post. You made it easy to decide how to base the army. In the end I went with the popular choice of Moot Green base coat.
I finished up the first unit of 10 Skeletons. When I rebased the skeletons onto the round bases I used what I had, which was a few solid bases and a lot of slotted round bases. I did not know at the time how I was going to base the models so I used some tape to cover the gap. If I went with sand bases there would be no problem. However with the paint straight on the base I was worried that you would end up seeing a rectangle raised area.
To try and smooth out the transition I gave each base a generous coat of PVA glue to start the process. I let it dry completely before covering the base in Moot Green. After that I applied a very thick layer of Agrellan Earth, and let it dry for a few hours. I applied a thin coat of Biel-tan green wash to the bigger cracks and some Agrax earthshade on top of the Earth. I then dry brushed on some Tyrant Skull. Finally finished up with some drying grass and chili flakes for fallen leaves.
What I found was that the bases with the PVA glue coating had a much nicer cracking effect with the Agrellan Earth. I have since started 20 more bases and had the same success. Also, no sign of the rectangle of tape!
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| Without the PVA glue |
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| With the PVA Glue |
Kevin
I finished up all the bases on my Age of Sigmar skeletons late last week. When they are on round bases they do look more "shambling hoard" like. I used the PVA glue as the first layer on the bases with these models as well. Once again it would appear to really help make the cracking much more pronounced. 
