Just received the EL34PH's I ordered, and was told by Rich [ head-fier Rico613 ] that the ones he got had large pins, so when it came to inserting them they were somewhat awkward.
I've inserted those I got and they were tighter than the SED EL34's I have, but I managed to get them in, and take them out with not that much of a problem.
I took them out because the leads that came with Multimeter I recently got, won't go far enough in the Stax sockets on my BHSE, so I've had to order some leads that will.
I had exactly tyhe same problem with the multimeter I bough. But I just had to remove -with an ordinary kitchen knife- the plastic aroud the metal pins (leads) at the end of the probs, exactly the way you strip down the end of a wire, to a sufficient lenght of course.