Which would be more effective in removal: the 2018 Quanta EVO Plus C or Pico technology like the Enlightened 3 or PiQo4? (Photo)

Picosecond lasers are just smarter on hitting your ink and damaging your skin less. I see excellent results with the PicoWay by Candela. Experience also plays a big key. Ask how many removal sessions the technician or doctor has done in total and for how many years. Getting to know a laser can take many tattoos and seeing how certain colors and areas of the body respond. More experience will not what to do and estimate better how many sessions if might take. Good luck, but go Pico if you can!

Thanks for your question and posting pictures.  You pose a great question about the latest laser technology.  People think that they have to have the latest laser for the best results.  After doing 1000's of laser tattoo removal treatments over the last 4.5 years, I can tell you experience makes the difference and I can explain why.When a doctor's office buys a new laser, they are usually trained by the laser manufacturer's team.  They are restricted to teach only the parameters and usages from their FDA approval.  You only learn what is in the book and no "off-label" tricks.  Unfortunately, real life isn't represented in the book.  Our current treatment protocols are completely different from our training.  We found what really works in the real world.Nanosecond/Q-Switch vs. Pico:  We have a couple of new tattoo removal patients each week that have tried the older Q-Switch laser technology.  They come in burned, scarred, frustrated...  If you want to risk hypopigmentation or hypertrophic burn scars under your tattoo, why not try a Q-Switch.  You could save $100/treatment, but you will do 10-20 treatments over the next 2-5 years.  With our PicoSure laser protocol, we completely eliminate most tattoos in 6-10 treatments over 2 years with no collateral damage to the underlying skin.My best advice:  Find a provider in your area with a picosecond laser that has the most experience with it.  Don't believe the marketing that PicoSure, PicoWay, Enlighten is better than the other.  The 755nm will work for most ink colors.  If you have red or pink ink, make sure they have a 532nm.  For PicoSure, 532nm is an add-on and not all have it.  I hope this helps.

These are all excellent questions if you are planning on buying a laser. Big decision. 
But of you are looking for tattoo removal, my advice is always the same: Shop for the right PERSON (who has a picosecond laser).
Your practitioner should be medically trained, licensed, and insured (many people forget to ask about the malpractice insurance). He/she should have direct experience from treating many hundreds or thousands of tattoos *personally*. Institutional experience (“Our spa has been removing tattoos for 5 years!”) does not count. He/she should care enough about you as a patient to numb you properly for every treatment.
Once you find this practitioner, you can trust him or her to have made a good decision about which laser to purchase for best, safest results.
Good luck to you!