Very good work Kranmer, (is kranmer a shakespearian reference?) You have produced a very good copy of the commercial pick.
Now its time to get creative and produce a modification of your own.
bobby pins are the sliders that I use when I make a tubular pick,however that also usualy means that I will file and sand the quarter inch of the metal that actually goes into the keyhole, as the bobby pin metal is actually a bit too thick for grooves cut into a key. (I base mine on ace keys cut to the 8th depth, (thats fort lock co. 8 depth, similiar to ace depth 7)
I usually curl the ends of the sliders, not that straight and a bit sharp on the fingers bend that the commercial picks use.
the picks I make from keys, are actually very small, about a quarter inch to go into the lock, maybe 5/8 inch shaft for the black O rings to operate on and then the sliders are curled back. Theres only a two finger hold for the handle, the job actually dosent require a full screwdriver handle.
I have one ace pick that a machinest helped me make cutting it to my design.
This one is a bit longer, but less than 3 inches, consists of a tube the inside and outside diameter of the keyblank, with 8 slider grooves in it. thats about two inches long, the sliders once again are curled for finger handling. On this piece the sliders are made from sweeper bristle from the curb brush of one of those little sweeper machines that are sometimes seen in parking ramps or lots. This metal is significantly smaller than regular sweeper bristle, and its exactly perfect for the pick tube that I described.
Inside this thin tube, there is a core that is another thicker tube, on which the tip to enter the keyslot on the locks center stem is completely mobile so that it can operate in the seven pin, offset right, offset left, and the 8 pin locks of this diameter, It can even open the type of bicycle lock that has no center stem keyslot, by simply using the black 0 rings as the handle. ( these types of locks pickup the center stem with thier pins, rather than the keyslot.)
I mention this here because you have the capability to produce a very good tool, and just copying the commercial picks is only a start, there is a lot you can do to make a better than commercial pick.
My reccomendation is to make the tool as light as possible, by drilling out any solid rod areas that only need the outer dimension.
When the pick is heavy, it has the capablity of crushing the delicate edge of the pick tip if it is dropped, so lightness is an important consideration
These are suggestions for what you may want to consider, I am not stepping on you achievment, You have done some excellent work there.