Sailing Locked's Current Skill Bottleneck - Settled

The "Sailing Locked" series continues to impress with its unique constraints and Settled's adaptability. I've been reflecting on the current state of skill progression, particularly regarding the challenges in obtaining higher-tier resources for crafting and fletching. Given the reliance on specific island spawns and limited merchant stock, what are the community's thoughts on the most significant skill bottleneck Settled faces in the mid-game? Is it still primarily farming/herblore given the seed limitations, or are others seeing a greater impediment in combat or production skills due to scarce material acquisition rates? Optimizing resource flow will be crucial for efficiency