As it would happen, the Probe Master 8150 is exactly the model I had in mind while throwing out "big as a truck." It's often larger than my DUTs! I love the screw-on attachments, but I don't love the size. Yes, Probe Master 8152 has thin pogos, but in the same comically large body, and without attachments. The PM8150 was my daily driver until I discovered the Pomona 6341. Truthfully, I'd prefer something even smaller.
I suppose it depends entirely on what you're doing with it. If you want to stab a power circuit for the lowest possible contact resistance or push through 30 years of crust on a through-hole component, a big probe and rigid tip are probably just what you want. If you're squeezing between 0402s under a microscope, even the .040" tip on the Pomona 6341 is unwieldy. I regularly use coax half that diameter (UT-020) and it's still larger than the pin pitches on 5 year old chips! Yes, pogo pins are trash if you're concerned about stabbing through crust, but they're brilliant if you want to keep contact on a 0402 by feel while moving around your desk to push buttons. I get maybe ±1mm of compliance from skin sag -- the extra ±4mm of compliance from the pogo makes a world of difference.
Anyway, a more complete picture of my lineup:
* Pomona 6341 daily driver
* ProbeMaster 8150 for anything big or crusty (spade lug attachments get the most use)
* Keithley 5808 kelvin probes for low resistance. Notably, these have rigid tips
* Patchwork micro stuff: 36AWG enamel wire, .13mm micro chip clip, UT-020 micro coax (20 thou OD), 047 to SMA pigtails, 0402 resistor book, UV expoxy, nano rework station.
So, OP: what do your circuits look like? Teeny weeny or big and crusty?