What record weight for Rega RP10

theo OP

for you, or anyone concerned about weight, the light rubber gizmo is very light, it just grips the spindle, no weight at all really.

"I am using a Kleos and have it set up pretty darned good."

theo- the Lyra is on the same level as Apheta.

Arguably, not being fully optimized with a Rega arm?

"want to try the Rogue Ares II Magnum or a Sutherland"

You may not be hearing what the Lyra is capable of using a phonostage lower on the food chain <$2500 or so?

Tube(Rogue or whatever) can be a game changer to some ears.

Hagerman for just over $1K seems to get positive review as the "punches above it's  price point" box. I don't  know however, if there's enough adjustability to optimize your  Kleos?

Tablejockey. I have considered getting the Alpheta as it would eliminate any error in setting it up. I eliminate the shims and everything else falls into place. 
I currently use a Linn Linto for phono stage and really want to upgrade it but currently have been dealing with some health issues, so I haven’t been wanting to make the drive to the closest dealer to audition the Rogue. Unfortunately the Sutherland products aren’t represented locally so then I would have to do a mail order. I realize that Music Direct does a 60 day exchange, but I would rather A-B with one that is broken in. So that brought me to the question about the weight as that was an easy cheaper tweak. But I have come to the conclusion that it most likely won’t make any difference if any. 
so I guess that until I can go audition the Rogue and compare it to my Linn I will just have to wait.

thank you for your input 

It's a matter of design.....my Linn sounded much better on a lightweight thin wood shelf I put together with brads, than anything "audiophile approved" I tried.

I have a Rega P6 with a Hana ML mc cart and I use a Michell Engineering clamp (the Rega-specific version, which is made for the correct spindle height). It's lightweight, made of low-resonance Delrin, and uses the twist/collet-type clamping method.

To me, music sounds tighter and more precise, with better soundstaging and crisper transients (although I know how subject many of us are to hearing what we want to hear...)

I can't see how the clamp would stress the spindle bearing, as it only compresses the record to the mat, platter, and subplatter, all of which ride on top of the bearing.