I just bought them, weight is 260 grm, as advertised.
I used to ride onle veloflex, excellent ride quality, but too many punctures!!!! With conti I have very good experience, but the ride quality is low.
From the point of ride quality veloflex for me is top,but the roads must be excellent in order not to have problems, I have change 2 sets of veloflex already and I couldn't put more than 1500 km on them, always a puncture and finished. Also I faced problems with base tape stayed on the rim.
With continental on my other Wheels, thecride quality was poor but you can make a lot of km, with any problems.. No problem also when trying to take them out of the rim. The rim was like new.
Now I am trying HT in the first set and vittoria SC in the other... Let's see
May I suggest you try the following in the future: should you buy into Veloflex tyres (tubulars or otherwise inclined), look at the date stamp of manufacture.
If less than six months old store them in a dry cellar (surely you have those in Hellas) away from light, any light source. Leave them untill they're at least six months old.
When treated like this you may experience far less (up to none whatsoever) punctures. Never had any problems with the base tape detaching from a Veloflex tub, tread yes but no more since the past couple of years.
That said, should I have to discard Veloflex for some hypothetical reason, I'd pick Vitto SC as next best choice.