HS11s = larger piston'd, longer bladed hs33s with a composite lever HS33s = same slaves and lines as the hs11, but with an aluminium blade, TPA , smaller master piston , shorter blade ( although longer aftermarket blades can be bought seperately) Echo brake = dengura = Ok.....you might be lucky and get a non-leaky one, basically a tarted up 05 magura, cncd blade , pistons and lever body. same piston as standard, but with a longer blade Best brake to get by a long shot is an 04 magura with an rb designs lever....but as these are as rare as rocking horse sh!t, an 05 with a "deng" lever blade, or magura 4 finger blade will do the job just as well due to the extra leverage Any more questions...just ask