I just got mine today and was wondering what the second disc was for. First I thought it is simply a spare but i wanted to be certain. Any help will be greatly appreciated.
http://www.megatech.com/product_detail_hop_ups.php?hop_up_cat=TMAXX/EMAXX&ID=22198
http://www.megatech.com/product_detail_hop_ups.php?hop_up_cat=TMAXX/EMAXX&ID=22198