I just signed up to say thank you to both Katlee and NeoPa.

Katlee for asking the very same question I had (I've got 13 fields in my search of various types). To NeoPa for posting the solution and examples that cover most field types and explaining how it works. That you both posted the code until it was correct was very helpful.

My monster search is working as a result! THANK you both so much :)