In my experience Topps have always been the most expensive. If they halved their trade prices, you'd still find it cheaper. The only thing they're good for is their price match. Though as said above, most do that now.
The only thing i use topps for is grout sponges,i dread going to a job where they have bought materials from topps as they tend to sell customers things they don't need and charge top whack for it.
As for bal stuff don't get me started besides bal white star they have'nt made a decent tubbed adhesive in years imho,bal grip is probably the worst tubbed adhesive i have ever used(ever),to be honest i would rather use unibond adhesive which grips nothing.
To me topps is my work antichrist:rant:
To be fair i did buy a pair of tile pinchers about 5yrs ago for £11 which i still use today,better than the £30 rubi pair i bought which broke on the first day of use.
Topps is nothin but a rip off far as im concerned, not bought anythin from them for over a year now, can get all my bal stuff (yes, the choice of the proffesional!) for at least four or five quid less and that makes a difference when you buy a lot of it.
I went into Topps yesterday for the first time in months, wanted some samples.
Lad told me there have been huge price drops since i was last in.
Bal Green star is now only £5 something. Great! when would i ever use that?
His answer: "bathroom walls?" mmmm great