I did try to contact Lee via e-mail a while back, and never got a response...so I solved the problem myself and purchased some old style S&W pins...I don't know why I even saved the Apex pins, but I will send them all back, as they are worthless to me..
I currently have an order thru S&W for a couple different types (part no's) of Firing Pins they list for J Frames, more to measure them and see what I come up with before doing any swapping with my gun's stock pins. If I can find any that are longer than the Pins in my 2008 & 2009 642's, which both measure approx .485", then I'll use them. Eight new S&W Pins, 4 of each part #, as well as 4 pin springs & shipping ran me $30 & change. If I come up with some that measure the same as the Pins in my 2010 & 11 J's, which come in right around .490", I'll run with those.
Allglock, based on what I seen in your photos all of my Apex Pins will be pulled and I'll stick with Factory Pins unless I actually have an issue with light primer strikes due to lighter springs. If I do, I'll simple go back to a stock weight Main Spring & see what I can come up with, balance wise, with the choices given for Rebound Slide Springs in the Wolff or Wilson Kits.
Currently I'm just biding my time waiting for the Pins from S&W and a few Wilson Spring Packs before I go back into two of my guns and remove the Apex Pins & Springs. All it took was some easy experimentation with a Wolff Spring Pack, which was done back to back with two of the Apex Carry/ Duty Spring Kits so I was able to get a side by side comparison, to sell me on the advantages offered by the Wolff Kits.
I've found that even after smoothing up the actions that each action has it's own feel so the one size fits all approach, which may work well for others, just wasn't my cup of tea. Now I'm able to match a Rebound Spring weight to a specific action and by doing so get a much better, more positive, feeling Trigger reset.
Before I went with the Apex Kits I had heard numerous reports here, as well as on other sites that the Trigger felt "mushy" with the Apex Springs but I figured that this was simply a case of personal preferences. While that may still be true, it's my preference as well. As always, your mileage may vary......