I wouldn’t try to case the cigar leaf, but that’s me. But, I like to blend with either red virginias or burley, with maybe a pinch of either (or both) perique and/or latakia. But, the blend depends on the flavor of the cigar leaf.
It’s just like cooking... taste it, and think (does it need morr salt, hot pepper, or tomatoes?). It’s really not hard. You really can’t ruin it; however, if you start dumping pounds at a time, you may regret it, but not ruin it.
Blending has to start with an open mind. You have to go into it with a sense of serendipity. “I wonder what this is going to taste like?” Whenever I start blending with a preconceived notion, I get disappointment. But, if I just try different things, I’m always surprised. Think of it as an exploration.
But, if I really like a cigar, I’ll try it in a pipe by just cutting a piece of cigar a little longer than the depth of the pipe chamber... if the diameter fits the cigar flushly to the chamber diameter. It’s a different experience from either the whole cigar or just blending with cigar.
It all requires an open mind and being open to the experience. YMMV