Don’t give up on pumping just yet, unless you are not particularly committed to using one. Some people do, do better on injections, but a pump could be a valuable tool once you have determined your settings and learned to adjust on your own.
@Hankman1 I have to jump on what @Dennis said. If I am going to exercise and it has been less that 4 hours since I’ve eaten, I still have “fast acting” in my system and it can cause a rapid drop. A pump is nothing more than an automated syringe, microdosing fast acting has been exactly the same as a shot of long acting for me (your experience may be different). If you want to try shots there’s nothing stopping you- you might get some good data! Good luck 