When I first had my bandsaw I made a fancy V jig... complete waste of time
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Go free hand, ideally with an assistant who knows what they are doing on the other end . Like mike said a 3tip with alternate set teeth for a wide cut. The other thing is to tap a wedge into the open cut to help keep it clear. When in doubt, hit the stop button, check everything. Once the first cut is done it's all much easier.
Here are some irritating sayings that might help
"Slow and steady wins the day"
"Let the saw do the work"
Del