Double roller vs. Single roller

define "A good roller" that lasts forever...Rollmaster? Perhaps (I have one on my stroker). Cloyes, I think not. Seen 'em opened up after 5K and they are saggin' like a spaghetti noodle. I bit the bullet and bought a tensioner. Its a no brainer on a LA. The slant chain i got new was very tight going on, think it was a TRW? The nice thing about Rollmasters are the quality of the cogs (as well as the chain) but the cogs can wear too so the hardened ones would surely last longer. Good thing about them is most are fairly cheap, even the good ones compared to other engine parts.rollmaster.jpg