Same Distillery, Same Cask Type, Same Age ish..
IB Spr*ngbank Refill Barrel PK (The First Editions)
Similarity: Tropical fruit, honey, hint of acidity & peppery oak spice.
Difference:
HL18797 (2017) Mango, pineapple with vanilla fudge finish (統一布丁).
HL19188 (2016) Lemon with a sweet & sour finish.
HL19189 (2016) Melon, pear with sweet finish.
IB Firdt Edition "Road to Campbeltown" series aka Springbank but I can't tell you