Upgrading from Lyra Skala -- Kleos SL or Ortofon A95?

Both of these are great cartridges for sure. I have not heard these exact models but I have a Windfeld Ti which is an A95 with cloths and a Lyra Atlas SL. The Ortofon is a fuller, rounder round, the Atlas thinner and seemingly more detailed. I prefer the Atlas for Classical Music and the Ortofon for rock and Jazz. The only other consideration is that you are using a unipivot arm which Lyra (the company) does not like. The Ortofon is a bit more compliant so it is likely to do better in your arm. 

 I’ve used Lyra with Vpi unipivot no problem.   I’ve had a Winfield and the Lyra Cleo’s SL and I would say I preferred the Cleos. Both good cartridges though.