Thanks for the responses.   I missed the 188-200 torque information a few short years ago by not reading the Haynes torque guidance, but using only the previously mentioned Torque Wrench Settings guide, and therefore only torqued to 150 lb ft.  I've just removed/regreased the bearings that appear to be no worse for wear, but the higher torque will be used from now on.    

Torque I prefer..

Tight as Snot.. To the nearest hole.

For single hole, 188, 190, 193 are all OK. I use 190 because it's easiest to remember. Then continue until the holes are lined up.

Just an observation. The bearings are the same, so one would assume the torque of 188 ft/lbs then to the next hole would be correct with a single hole CV.

My car is a later model with 8.4 disc/single hole CV w/34mm castle nut, so I use the 188 ft/lb torque then enough to get it to the next hole or I put split pin in if it lines up at 188.

I know what you mean about the torque wrench I borrow a 250ft/lb torque wrench to do them up, my own only goes to 150 ft/lbs.

     My question is also a comment.  I have a 7.5" front disc brake model, with a single split pin hole in driveshaft for which I have compared the Torque settings information in my Haynes 1969-2001 Manual (2003 edition) to the Classic Mini Torque Wrench Settings article here on our host's website: https://www.minimania.com/Mini_Torque_Wrench_Settings_597.    And I have also reviewed various other web sources.  
    At the link posted here it indicates 150 lbf ft  for a Mini Cooper S MK1-3;   while the Haynes indicates 188 to 199 lbf ft (or 255 to 270 Nm.)  
    One of the other sources indicated torqueing up to 193 lb ft and then tightening up to the split pin hole.   One of the other sources seemed to be directed at the 8.4" disc, while the Haynes manual simply mentions "Disc brake models", and the link posted here doesn't address any difference for disc size. So I'm not sure there is conflict, just perhaps source and opinion, or is it age of reference, or? 
    I had previously torqued to only the 150 lb ft.   I have recently found this torque settings discrepancy and have purchased a torque wrench capable of up to 250 ft lbs.  
     (I understand if you have a disc brake model with multi[le split pin holes in driveshaft then then according to Haynes 153 lbf ft or 207 Nm, but mine is a single hole drive shaft).  
 So, the question is what is the correct torque for a Drivesaft retaining nut on 7.5" disc brake model with a single split pin hole in driveshaft?