seeking advise on appropriate grouping of tunes into sets

Are there any “rules of Thumb” regarding grouping tunes into sets, then playing those sets? Things like:

“You should only group tunes of the same kind e.g., only slip jigs together.”

Secondly, if the subsequent tunes in a set have lead-in bars, should they be omitted in order to keep the flow of the beat?

It is highly likely that most groupings are based on trial and error - in other words what sounds good regardless of type of tune.

Thanks,
Charlie

There are many threads on this topic. Here’s some:

http://chiffboard.mati.ca/viewtopic.php?t=47318
http://chiffboard.mati.ca/viewtopic.php?t=53921
http://chiffboard.mati.ca/viewtopic.php?t=59519

Duh! The search function is the place to start.

Thanks,
Charlie