We study the representation spaces appearing in Kronheimer and Mrowka’s instanton knot Floer homologies for a class of pretzel knots. In particular, for pretzel knots with pairwise coprime, these appear to be nondegenerate and comprise representations in that are not binary dihedral.
"Representation spaces of pretzel knots." Algebr. Geom. Topol. 11 (5) 2941 - 2970, 2011. https://doi.org/10.2140/agt.2011.11.2941