I went from seats to leaning post,I have bout 18"s between also.The biggest thing to look for is the angle of the rod holders. Mine have a slight angle which allow me to walk behind them when carrying rods.I'll be selling My pedistel seats here real soon. I think their factory ?Juz' don't need em'They were going toMy Bro for his underwater Duck Blind.He'll get one mo' shot at em'
Tug