Sharksbreath a meduim yeilder,mt best was a lil over 3oz on a plant,STINKS A FUCKTON!!!..heavy feeder,low leaf to bud and takes 9 to 10 weeks..lemon fuel skunk flavor,don't travel after smoking,you WILL stink...romulan was medium yeild medium feeder,stank skunk with berrys and fuel/oil smell,heavy crytalization..took 9 weeks or so...some great smoke but the shark is so popular with me and my friends we all say its the best ever..and due to popular demand I'm growing more,so far looks like my old pheno I lost in a move..so id say it appears to be remarkably stable also...and yes the lemon skunk was lanky and never yeilded much,I was some straight fire!! At least that was my experience..got l.s. and s.b. from freebies off attitude years ago..their freebie purplehaze from dinafem last year is a heavy hitter so far also in my garden.