Should I send Overnight or Regular mail?

Because there are more trials being offered in a five state area - trials are not filling as fast.   I want people to save their money and only use overnight deliveries it when it is necessary. (exceptions noted below*)  

1.  The 3 ring trials are not filling that fast and therefore you do not need to send your entries via overnight mail.  (exceptions noted below*)

2.  Many 2 ring trials are not filling that fast that you need to send overnights either (exceptions noted below*)

3.  With rules  "No hand delivery" in the first 24 hours of the opening and not more than 10 DOGS entries in an envelope - it makes sense only to use overnight delivery when it is really critical.

4.  If your are mailing from PA, for a first received opening on Tuesday, it is best to mail your entry late on Saturday.  Mail from PA takes two days to get to my post office in NJ.  From NJ, it takes one day.     My post office has changed delivery time to 3 pm in the afternoon so I must change the opening date on order to process entries in a timely fashion.  Please check with the specific carrier for overnights to see "when" they deliver  on each specific Monday holiday.

 *Exception trials are listed below (provided they stay at the proposed run limits) I expect each of these trials will fill very fast:  

For the Spring - 
DCKC March (indoor)
TBAC March (indoor)
SOJAC March (indoor)
Afghan
SICDTC Spring (If entering for the Friday Exc only day)
PCNUT

For the FALL - 
Berks
Princeton
Skyline
GSNEC (indoor)