+1 on the muzzy's. i started out with the 3 blade and am now using the 4 blade (my thinking is more blade surface area) . Never tried the expandable type (always worried about then getting breaking apart, etc...). As far as waiting before tracking, I wait 30 minutes at least depending on shot placement. Also congrats on the 1st archery deer.
Lifetime member VFW and NRA
"Quando Omni Flunkus Moritati" (when all else fails play dead) -Red Green