Super Rocket Best Year?

[sprint]

I am looking at purchasing a Super Rocket, which looks to have been made between 58 and 62. Is there a particular year/period to go for?

Are the 60 on the ones to go for and is so why?

Are there any particular points to be aware for any particular year?

[Billybream]

Hi.
Very little change over the 5 years, 1960 saw pear shaped tank badges and front valanced mudguard, together with 4 spring truimph type clutch.
Robust design throughout, need to check full pedigree, most parts still available via replica sources. Some times hard to except these bikes are now over 50 years old, and real respect is required at all levels.