MHX makes a really good blank for the $..I use a CB843 personally for my sq-bill rod.I've had it for 5 years now and it's pretty hard to beat..
The MB873 that you're looking at is pretty solid blank...Good backbone, and a taper that is not terribly stiff due to the mixture of low/high fibers in construction.
Fair on weight, and sensitivity (subjective) is adequate.
For a first rod build this would be a good blank line to start on...Not busting the bank, and your getting a good product with a good warranty.
Ive got nothing bad to say about MHX...I know several professional builders that build just about everything on that particular brand.
Edited by Wafflejaw (08/10/15 12:26 PM)