Solus I weigh about 175 now and am trying to get back to 165. My seat was originally hung with 4 bolts and wood dowel spacers. The wood dowels were cracking so I have changed the wood out for 3/8 aluminum tube. My first plan is to shift the seat back by putting the front bolts in the original back holes and drill to new holes for the back bolts. The lack of tumble home does cause for some knuckle banging on the gunwales for sure. That is another reason I was thinking of a different canoe an Wenonah or Bell.