BS Chart for multi-deck game where dealer hits soft 17?

Where can I find a good BS chart for multi-deck games where the dealer hits soft 17? I know it's an unfavorable condition, but it's also one I can't avoid right now.

I've seen a few different charts, but there's no real consensus between them- especially concerning some surrender situations. If anyone can recommend a reputable chart it would be greatly appreciated.

Thanks.