I hadn't heard of this seller before but their lineup is very interesting for me since they offer to put a brake track on a lot of their rims, first time I'm seeing more modern rim widths and shapes with a brake track . Since rim brake is very niche for modern bikes there are not many options around and the few that are usually tap out at 28mm external at the widest point and even 21mm internal is rare. I'll look into getting a set of 30mm ex/23 int rims next week. Cheers

Question

I'm thinking about converting my 368 into some sort of hybrid TT bike. We have local-ish TT races in the summer, and entry is free. So why not 

Any thoughts about the cockpits? Clip-on aero bars? Riser kit? Not sure what would be most effective and practical.

Thanks

If you want to keep a normal stem+drop bars and use clip on aero bars you could get one that clips onto the stem although I don't know if those work with just any stem. In any case reach wise you normally want your elbows on the pads and if you clip aero bars onto the handlebars I'm fairly certain the pads will be too far forward unless you use a much shorter stem.
You could replace the current cockpit and get something like the winow base bar + aero bar combo. I think it works with any normal stem although they have some specific stems for that as well. It's fairly expensive but has good adjustability as far as I can tell.

In your situation I would first continue to try and find bikes to test ride before I buy anything because lord knows what geometry fits you. Bike geometry refers to the bike frame's tube measurements and angles between tubes, when people say geometry they don't refer to buzzwords like 'aero' or 'climbing' but rather the likes of 'endurance' (shorter and taller) and 'race' (longer and lower), there are aero endurance bikes and non aero race bikes .
Ask in that cycling club if you could test ride bikes size 58-62 as a starting point or maybe go to a bike shop to test ride something and see how the geometry of whatever you just tested stacks up against the cube or whatever else you're looking at. The site geometrygeeks.bike lets compare frame geometries, a bike's geometry is also not set in stone because you can always alter it through changing stems, spacers. I definitely would not buy that cube blindly without testing.
For big brand fakes like that pinarello you linked its generally speaking not advised to buy these because very often they are lower quality and its morally questionable. If you do want to go that route there are threads on that topic, don't buy blindly it's risky.

Hello
since some of you guys will be receiving their frames in the near future I would appreciate it if you could post pictures specifically of the frame's front end, the headset cover and stem situation and how it looks when you slam the stem as much as possible with either of the covers they send with the frame.
I'm interested in the frame because I'm looking for a long reach frame but as it stands I would need size 58 in reach and size 55 in stack. The 58 with a stack of 591 is at least 20 mm too tall but maybe I can make it work with a -17° stem, from looking at the pictures I'm just not sure how many spacers you need to add between headset cover and stem because you surely can't slam the stem on there.

Tideacebike

what a coincidence I stumble upon this thead after I built up and an old tideace frame I had from like 2018 as a gift for a friend who wants to start road cycling