deng bikes ( echo, koxx , zoo, gu ) are the most popular in mod bikes now. The geo has shifted to shorter chain stays, longer wheelbases and higher bottom bracket height. Neatly all of the deng frames are extremely durable now, so you wont go wrong with one. Bikes ahve got a fair bit lighter, id say on average mods are around 1/2kg lighter than when you quite.....dengs are heavy, whereas comp bikes like montys and koxxs are considered light. The gu 08 is a lot longer than the levelboss so should be better for most pure trialsy things...depends whether you rode street or natural really.