Good morning. . I've been reading a lot of the post and you guys seem to be an authority when it comes to the cz Ts. I have a few questions, and hope you can help me. First, what recoil spring would you recommend, I still have a stock slide and will be shooting 180 or 200 grain lead 165pf. Second, what hammer did you use from cz custom, is it a drop in? Third, what dawson sight do I need to install to get a poa/ poi at 20 yrd using the stock rear sight. Thanks again and have blessed New year.