1983 Topps: Wax or Michigan?

I'm going to buy a box of 1983 Topps tomorrow to take advantage of the $5 special before my membership runs out next month. Since this is strictly to try to find cards for grading (here's hoping for awesome Sandburg, Boggs, and Gwynn cards!) should I go for a regular wax or the Michigan test packs? Thanks in advance!
Chris
Chris
Chris
My small collection
Want List:
'61 Topps Roy Campanella in PSA 5-7
Cardinal T206 cards
Adam Wainwright GU Jersey
My small collection
Want List:
'61 Topps Roy Campanella in PSA 5-7
Cardinal T206 cards
Adam Wainwright GU Jersey
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My Registry Sets
Chris
My small collection
Want List:
'61 Topps Roy Campanella in PSA 5-7
Cardinal T206 cards
Adam Wainwright GU Jersey