trenbolone acetate (TBA) is almost unknown in Europe but popular in the States; it is illegal to use on livestock in Europe therefore we have no legal supply for TBA.
oxandrolone seems to be more available; while SPA has discontinued it BTG still makes it. Generics from Mexico are also plentiful.
DNP in somewhat popular in the UK but on mainland Europe very few know about it.
other gear is the same; abombs, deca, dbol, winny, test; brands are different though; more human grade gear at better prices; original Schering testosterone enanthate goes for the same price as mexican vet gear in the States; prices are generally lower due to the relaxed laws here; personal use is legal in most countries and trafficking anabolics is much less of a crime then rec. drug selling. US customers have to pay a much higher risk premium to their sources.
about cycle lengths; a german IFBB pro recommends 22-week cycles in his book; cycle length is probably also longer because gear is cheaper? i don't know really, recommended doses are much lower also but this could be attributed to underdosed vet gear sold in MX to US customers. at least some commentators complain that gear quality has decreased since steroids became a controlled substance.