As an alternative to screw together fiberglass rods I use these: https://www.lsdinc.com/content/product_details/51

a bit cheaper and i just overlap a few inches and tape a couple together if I need more than 6ft. The pre drilled hole in one end will take one twisted pair nicely. (one pair through the hole seems to hold better than tape that can slide off) They have saved me a ton of time with wall fishing. (is wall fishing a sport?)