In english, decifered for you who continue to struggle: MESH type nets have always been replaced every 2 years. RIBBON type were allowed to be used longer, then the rulebook changed it to every 2 years, then NHRA got major backlash, now they have relented, and returned to allowing RIBBON type nets to continue in use.
"Livin' in a powder keg and givin' off sparks"
4 Street cars, 5 Race engines