Nice snakes! I've never had the "banded" types, all mine are the "speckled" variety. Here's a little breeding tip from me (at least its worked for me many times) when brumating, keep them dry as in no spraying. When its time for the warm-up, wait until about 5 days of nice warm temps and spray the crap out of them. W/my adults, the reaction is almost electric! A heavier setting as opposed to a fine mist is good too and I warm-up the water as well.
Bill
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The Menagerie:
3.8 Emerald Tree Boas
2.4 Spilotes Pullatus
1.3 Chondros
2.4 Red Tailed Green Rats - Maylasian Origin
2.2 Scrub Pythons (Kofiau, Moluccan)
1.1 "Sunburst" Indian Sand Boas (Adults retain juvie coloration)
Veileds, Jacksons, and Panther Chams