So I am getting ready to haul out for bottom touch up and installation of UW lights and addtl Transducer. My previous boat had very specific instructions regarding weight resting on the keel and stands per x number of feet. With the new boat there are no figures to go with as reference. Just some well marked sling indicators. So on a 40ft boat is 3 stands per side adequate or is 4 necessary? 25% of the weight resting on the keel or perhaps more up to 35% Look forward to hearing the perspective of some of our contributors.