Tubs

Got my hands on some Assos tubular rims.. Yes, the 16mm wide ones. They are stupidly light, 718 grams for the pair according to velobase but will weigh them at the shop when I get them laced. Ideally I want to use them as an indoor track set for lvv but not sure on what would be acceptable for use there in terms of tubs. I have a pair of conti olympics and sprinters both in 22mm which sit flush and very securely on the rim even without glue etc. they don't look or feel like they would come off any easier than on a normal width rim once glued properly. When looking from above the tyre is no more than 2mm wider than the rim on each side. Anyways, tL:dR..

When looking at the terms and condition of lee valley they use some terms which I need clarification on -

• tyres/tubulars must not have coloured tread
  
• no michelin tyres/tubulars or other dual compounds are not permitted
  

Dual compound means coloured tyres, red, blue etc. right? not tan/gumwall tubs?
The conti sprinters are a very dark grey, do you think they would be considered coloured upon inspection? (not wacist btw)

Also the olympics sidwalls are perished, they hold air perfect but they might attract unwanted attention, is this anything to be worried about? Olympic -

Sprinter-

Slightly off topic but would they also allow Mavic Track hubs, the ones with the allen key bolts ?because they also mention the following on the tc's -

• quick release wheel axles are not permitted
  
• wheel axles should not extend beyond the track nuts