The Riddlers are pretty much a laughing point with some friends I ride with.
When I got my Arkose I switched them (mind you I switched the entire wheelset).
Replaced the Nanos that came with my 8 with Gravelking SK - one slow picture in 1.5 years of grav grav and central London commuting so I'm happy with my choice.
Are the WTB tyres on the Arkose not very good? Already have a puncture after just 3 days of commuting vs none in 7 months on Continental Grand Prix.