I have several old rods made with lamiglass blanks. Rods are 20- 30 Years old, they were my Dads rods. Old supercutter blanks, 9-11 feet in length. My question is, are these rods still usuable ? They are in very good condition except for some pitting on a guide. They have been garage kept and cork tape is in almost perfect condition. Any help and or advice would be appreciated.