Yes. I have played Pig and ShujikyDink at UFGT. Also, sometimes online, including Playing 2 Win. I know it is bad for Cyborg, Pig thinks it is worse. It may be 3-7, however I just think I have yet to find a good strategy for dealing with him so I keep it at 4-6 haha.
Right now Sinestro gets to play his game 100% against Cyborg. Cyborgs dash is still amazing so I like to dash/block in to about midscreen. From here Sinestro will be to afraid to actually charge his trait.... (Pig will do trait fakeout charge traps to try and bait you to move :X) When you close the distance grapple can be effective. Never use it to just get in as d2 will blow you up. You need to use grapple's armor to absorb a boulder, fearblast, or that shackles move. All have long recovery frames so for Sinestro so depending on where you grappled from you either get a free in for pressure...or free wiff punish! Watch out for MB fear blast though.... Also luckily, by this point Sinestro has put himself in the corner so he risks taking huge damage from Cyborg's corner combos/vortex.
Sinestro actully haas great footsie tools compared to Cyborg, so I don't like to fight him midscreen. Need to respect that gimmicky wiff/low spike attack he does. Also, I hate that ambiguous jump axe thing he does.
If you get a significant lifelead and meter advantage you can outzone Sinestro. IANB will trade with bloulder, enough to recover to block, trade with fearblast, enough to duck or block, and will trade and trade with those foot shackles, which will wiff (hit and a free dash in). MB fearblast is a problem, but just use Air NovaBlast MB to dodge them. Also, I find checking him with Ground fireballs is good to do, and if you get a chance to start missle pressure...TAKE IT!
It is tough, and I am still trying to find a good strat for this MU, but Sinestro just outdamages and out footsies Cyborg. More reward for his reads, and if Sinestro gets the life lead (usually happens) then you have to try and dash in, which means Sinestro gets to play the game his character was designed for and Cyborg does not