Hold'em strategy articles tagged "spin-and-go".
Against calling stations, you should not increase your bluffs. Instead, you need to design your range from preflop through the river so that value arrives. This article covers how to distinguish flop-only calling stations from multi-street calling stations and adjust your exploitative intensity accordingly.
On boards where BTN has a large range advantage, even underpairs can become good barrel candidates. The key is to consider the value of the hands you fold out, blockers, and redraws together.