Hi Ken,can I add a little advice on the sealer adhesive? Any urethane sealer/adhesive needs minimum 2mm of thickness between the two surfaces to bond to full strength so if your bows are within that it should work fine. Squeezing to much sealer out of the joint is only waste product. Sikaflex brand of urethane's make a wide range of product for heat and elasticity that would allow for any movement required.
Sorry if I am bombarding you with information that you probably are fully aware of.