It seems that (at least for me) whenever I stop opening packs with FP/Coins and receive a free pack or do a cheap SBC my pack luck is amazing. This year I got Nesta(free pack) in octomber but I stopped playing FIFA until feb-march when I decided to start again and complete the Suarez SBC. I packed Stoichov in the 2nd pack. Last week I got Birthday Luiz from a pack and last night I got IF Sandro.
On the other hand, I spent over 50000 FP during the TOTS and I only got TOTS Dembele.