Hi Mouse, and Happy New Year to you and your family.
I've never played cello, I'm a fiddler. I have the Fiddlerman Master, and it came with Kaplan Amo strings. After a year, I decided it was time to change them out. I'm one of those people that does tons of research before I buy anything, and after checking the Q&A and comments section of the Master along with checking violin forums on what the professionals use, I decided to try the EP Gold strings. The Master is normally a warmer violin with the one piece back and I liked the tone. After installing the EP Gold strings, my violin kind of came to life. The G and D strings are still warm, the A is brighter, and the E sings! It took a few days for them to stretch and open up - just wait for them to break in.
I know every violin sounds different - even the same model assembled on the same bench. Each violin has a different voice. The EP Gold strings are a little more pricey, but for me it was worth the extra money.
I know the pros try dozens of different string sets before they find the right set, and many violinists mix strings from different manufacturers before they find the right combination for their particular instrument. For me, the EP Gold strings sound great, but I'm sure I'll be trying different sets over the years until I find the "perfect match."