I just checked my prop pile onecuwldood and all my 15x4W APC's have been reamed out. Here is the contact info for APC. You might email or call them to find out for sure.
Landing Products
1222 Harter Ave.
Woodland, CA 95776
Email:
[email protected]
Our Business Hours are 6 AM to 2 PM PST
Phones:
530-661-0399
530-666-6661 Fax