Lyra Helikon SL-Worth upgrade?

I wholeheartedly second Granpad. The Helikon comes very very close to the Clearaudio Insider in slam, soundstage layering, general dynamics and resolution down to the pppp level and this at a fraction of the price! I use it on a very heavily modified Souther arm. Cheers,

The Helikon is a great step forward from the Clavis. Except during the first break-in period, it is much more full bodied and has decidedly more PRAT, here being closer to the Insider than any other cartridge I am familiar with.

Rcump, had the same experience as you with the Grasshoppers.