Need help. Rupes LHR 75e or ....?

[kkritsilas]

The Lake Country 4" plate is still being sold on Autopia https://www.autopia-carcare.com/flex-backing-plate-system.html#.Wo3mhqjwaUk
(unless you meant another one?)

The Flex Mini bp is listed at 4.5"

When I bought the LC version (in 2015), it didn`t come with the larger plate as part of the interchangeable system.

The LC backing plate system for the Flex 3401 has been out of production for at least a couple of years. So have the Hybrid Power pads (the first pads specifically designed for the Flex 3401). Any LC backing plate systems, or Hybrid Power pads being sold are existing inventory, not new production. The current LC pads for the Flex 3401 are the Hybrid Force pads, and are now 5.5" pads, vs. the 5.0" pads previously. They are now large enough to be used with the small Flex backing plate, whereas the older 5.0" Hybrid Power were too small for use with the small Flex backing plate.

Speaking of the small Flex backing plate, the exact measurements are 110 mm(exact conversion is 4.3307") in diameter. My local site (carzilla.ca) shows a 4.35" diameter measurement. not 4.5". I have personally measured the diameter, and is just below 4 3/8". Various sites I have seen show it at 4 3/16", 4.38", and 4.5", but it is definitely smaller than 4.5", even though it really doesn`t make much of a difference as long at the 5.5" pads are adequately supported.

 

[Accumulator]

Is it as hard to avoid holograms with 1-2-3" backing plates as with larger BP and pads 5" and higher? Or is that it`s gets smaller buffer trails that makes them more difficult to see? And is it still so hard to polish with the new abrasives and pads on a rotary polisher when doing the last polishing step and not get holograms?

I have no experience with rotary polisher so is intrested on how it`s know days.

Smaller issues are less obvious than larger ones, all a matter of what you`re capable of and what your standards are. You can work *tiny* areas with a rotary tool and get tiny little holograms (which I`d see in a dark room when inspecting with a SunGun...every time).

I did`t find the newer stuff any easier/harder than the old-school stuff with regard to finishing out, and hey that first 90% of the work is easy enough IMO. Which reminds me of how easy it was to finish out hologram-free on single stage back in the day (when I was just an ignorant kid too).

To hear many talk it`s easy enough to avoid holograms if you simply avoid [obviously stupid stuff], but that simply hasn`t been my experience either with my own rotary work or that of others that I`ve seen IRL. I fully believe that some people can do it, but then some people can do all sorts of stuff that I`ve never actually witnessed.