RC12R5.1 vs RC12R5.2 ?

[CrashBangWallop]

Just a quick question or two.

I know what the advantages are of running damper tubes vs a traditional damper but. . . . Are the damper tubes 'messy' and leak everywhere all the time or are they clean like running with a normal damper setup ?
Just need to know as I am going to get back in to 12th v soon and want to hear a few opinions.

[Robocop]

Damper tubes as you dont use very thin oil and you use so little in the tubes it dont go everywhere and guves you a more consistant car with them