Where I am the 17Dx and Rega Apheta 3 are the same price and the Delos is cheaper than both. The 17D3 used to undercut the Delos but the change to the brass bodied Dx came with a hefty price increase.The Rega will have a good chance of correct VTA on a Rega deck, you’ll have to shim the others if they need adjustment.
Cartridge (other than Rega) with Rega RP10
I've had a Benz RubyZ with my Rega RP10 for several years now, a very nice combination. I was wondering what other RP10 owners might be using and recommend, other than the Rega cartridges.