What do you use them for? I am debating weather or not to continue attaching my blocks and sheets etc to these or install jib & spin tracks. Seems to me that I have gone to all the trouble of rebedding to rails and now by attaching blocks I will be exerting forces and brealing calking seal on an area that is prone to water leaks. What is the consensus with respect to toe rails for load stress. What is acceptable? Hoe do you make use of your's?