I think that installing too hard or too soft a shear pin could lead to problems, so it is probably best to get them from Entegra.
While you are in there to replace the shear pin I suggest putting Locktite on the motor mounting bolts and re-tightening since these have been shown to loosen with use and you don't want to have to go in there again to tighten those bolts.
Marc and Jill, Wellington FL
2013 Entegra Anthem 44SL
2018 Lincoln MKX