I got a shadow 2 and TSO which I use in uspsa. You can rock the safeties but it?s not like rocking a safet on a 1911/2011 using your thumb. Depending on the strength of the spring, it?s not as easy to rock it on/off. On my shadow 2, I mainly use the safety to rest my strong hand thumb. For the TSO, I find that most of the time, I still have to activate the safety on by putting my thumb underneath it.
Tok36 is correct in that the shadow 2 and TSO use two part ?D? style safeties.
For your adjustable sear, you can use your soldering iron to loosen up the loctite so you can adjust your sear to your safety. Red loctite loosens up with heat and you can reapply new loctite once you have adjusted your sear to your new safety. It is a better option compared to filing the nubs on the safety lever which negates the use of your adjustable sear. It?s also more more in fitting the safety to the sear. It?s also more cost effective than buying a new sear.
You can also use a heat gun if you have one.