I'm having a 14mm longer latch rod made for me as we speak by Shaun of ISP air rifles. Shot one at the Paul James recoiling shoot, it was awesome.
My mk3s been vmached already too and it was way faster. I think I can use all the v Mach bits I have already but I'll have to shove a few more washers in it to bring the power up. If the vmach stuff doesn't work I'll order a mk1 spring/carrier/top hat set up to get it working properly
Steyr LG110 HFT 2014, Warren Edwards grip set, MTC Viper Connect 3-12x32 SBC
Air Arms TX200 mk3, walnut stock, Delta Optics 4-14 HFT