This past April I had Dave Goerend, www.gbtransmissions.com, do another transmission valve body mod. I can now lock the tc in all forward gears by using the manual lock-up switch that was already in service. I also had him smooth out the firm shifts without reducing line pressure from previous mods. I really like this setup. The transmission operations are smooth, I can use it in a straight shift manner or regular auto mode. For me, it is the best of both worlds.