From my observation, my virtus (no factory tuned, just regular virtus, no murnan modified either) was clearly slower than the newest picco like nitrodude said during Airtronics race, not sure on out- of- corner but on straightaway. I know it was not my tuning. Had quite a hard time catching up people w/ Picco this time. And big boys vouch for the new Picco. So I will try one. One on the way now Costwise, not sure how long P/S combo would last compared with Nova so I can't say. But if the initial cost is that much less for Picco, I would say it would be more economical since I wouldn't keep the same motor for years, even if it lasts, so I can stay competitive. DOn't have that many years of experience but I'll find out soon I might end up selling all my Ison/virtus/Top nova lines. Who knows?