Yes the IPE is somewhat stiff but installing the IPE toerails was not too difficult. I cut the toe rails to shape , so they formed over the deck to hull joint. If I remember correctly I did not use the existing holes but rather drilled new ones in the newly fabricated toe rails. I removed the existing toe rails and filled in the existing holes with epoxy. I did not steam the toerails to bend them, I dry fitted them onto the boat and then let them set for a couple weeks before removing them and actually bedding them. (By then they had taken somewhat of a curve set) I started by drilling one hole through the toe rail and the deck and inserted a bolt down through the toerail and deck. Then I pulled the toerail inward, forming it along the outer edge of the boat and repeated the drilling and the bolting. Just keep this process going until you have the complete toe rail fastened down. Some of the toe rails were harder to form around the curve - I could have used some help but I still managed by myself. If you have someone there to assist it will be easier to pull in the toe rails around the fat part of the boat.