Hey everyone, I have a Weatherby Mark V in .340wby. I'm looking for a better trigger and wanted a Triggertech. On the Triggertech website it says they're only compatible with US made 1996 and on. Timney triggers say they can be dropped into US and Japan models. I have a Japan made between 72 and 94. Does any one have more insight as to why the Triggertech cant be used in the Japan models and does anyone have experience with the Timneys? Or is there another trigger that anyone would recommend. Thanks