Nope haven't touched them in years, and R5 Ghost is one of my main champs. And I do have all the synergies.
I voted yes, but I only recently (like since last thursday) started investing in suicides. I currently have 1 point in recoil and 1 point in Liquid Courage, and I'm already noticing a big difference in my damage output. I also have very suicide friendly champs in my questing team (Ghost, Corvus, Aegon, Quake, and Namor), so I feel like it's a good choice for me to invest in it. It does make it irritating to use other champs, like in gated quests like this months alternate realities thing, but overall, I think it's worth it. I'm also a big arena grinder, so they help me out there too.
Don’t run them. Not a fan of being limited to sp3.