Improvements were constantly made to the Laverda street models as well as to the race models, too (S, SF, SF1, SF2, SF3, 3C, 3CL, Jota, Jota 120, RGS etc.). Keep in mind, you could order different cams, different heads etc. - what at the end was a Slater Jota? Nothing else as a street version with factory pre-installed tuning components (higher compression, 4C cams, all designed and delivered by the factory...) and a different exhaust, designed/supplied by Slaters. So - if the factory wouldn't have wanted you to modify or did believe they built the best possible bike - why did they develop the bike over time and did offer a lot of tuning parts (and may that be said: not only to race-teams...), why did they even deliver different models depending on the market (and by request of the local distributor)? Also some of the race modifications endet up in the street bikes like bigger heads/valves etc.
Sulzbacher, Cico and some more seem also not to have liked very much what the factory did (and even did successfully, what the factory did not want to offer, such as 40mm carbs on the top bike of Cico...). My bike's modifications started of with Cico's ideas in the back of my mind (1200ccm, higher compression, SFC-head, 4C cams, 40mm carbs). As my bike was actually built by Cico one day (but did not have to many of these modifications when I got it but just the exterior, such as the fairing and seat), it was a natural consequence for me to follow his route when I found the bike to be lacking handling, power and many more...
I have a hard time to believe that people at that time took a street bike, took the turn signals and mirrors off, taped the headlight and went on race-tracks. I think most of those bikes have been modified, partly heavily before going on the track. If I see what it took Gijs with his Laverdas to be successfull and what modifications went into these bikes, my bikes really feel original...
