The Non-lockon ODI Ruffians are bastards to get on. On Try-All bars, it's too damn difficult.. But I just put a little bit of rubbing alcohol (isopropyl) on the bars, twist and slide the grips on. Takes a little bit of force, but is loads easier than without.
Then I ram a 2 mm allen key between the grip and handlebar, this way, the alcohol can evaporate quicker, which means that you can ride sooner.
Works awsome with any grip and any bar, leaves the grip and bar surfaces clean from shit, and with the Ruffians' super hard inner core, they'll stick like leehces glued down with araldite.