I'm not at all versed in the traditional style, but a few things I use (or have heard of) to combat ice like that:
-Floor scraper. $20 at your local hardware store.
-Weed torch. Don't laugh...a B-H.com reader uses one to melt down his high spots.
-Bucket dumps. Tougher to do if you have a slope, but if it's cold enough, it may fill in the low spots of your waves and freeze there.
-Slush bucket. Probably best for smaller areas, but work it like a ref does in the NHL. Fill in your low spots and let freeze, then resurface smooth.
-Warm water floods. If you have access, thin warm water floods can help even out your ice.
I'm Joe from Backyard-Hockey.com and EliteRinks.com.
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