I have an old tractor with a backhoe that was neglected. An IPA joint cleaner and a lever operated Lincoln grease gun have cleared all the zerks. I had to replace a few zerks as well, but when the clog is in the joint the IPA is the ticket!
The pedal is no issue at all with the l&l. Just did mine again today.
Wildfire did a video on his YouTube about the L&L on his bx25. It looked like it did a good job. There is also another one he shows where it is like an air hose female connection. Works ok too.
I have never had a problem on my BX at this point. I have more problems pulling the damn rubber mat back than I do hitting the zerk with the L-N-L!!!!!!!!
the lower turret piviot on my hoe would have trouble getting and also the universals on the PTO shaft for my blower (when installed) would be trouble also. Just too big and cumbersome , to each their own if they like it , but myself I have no issues with a regular adjustable end , the only benefit I could see is its holding power to try and force grease through a stuck zerk as already mentioned.