buckingham,
i'll echo the above. you obviously like rogue gear, run with it. why go to extremes trying to match another pre to the m120 monos you've acquired. i've been running a mag99/stock88, and can say the results are still stunning. having auditioned the 88 with a 66, the 99 is the way to go. since you have the budget for the m120s, the 66 will leave you wanting the 99. you will not be disappointed. you may just have to pick your jaw up off the floor repeatedly when you first mate it with the m120s. there are better preamps out there, but you have to really up the ante and budget considerably.
for god's sake man, get the 99 magnum
hope this helps
i'll echo the above. you obviously like rogue gear, run with it. why go to extremes trying to match another pre to the m120 monos you've acquired. i've been running a mag99/stock88, and can say the results are still stunning. having auditioned the 88 with a 66, the 99 is the way to go. since you have the budget for the m120s, the 66 will leave you wanting the 99. you will not be disappointed. you may just have to pick your jaw up off the floor repeatedly when you first mate it with the m120s. there are better preamps out there, but you have to really up the ante and budget considerably.
for god's sake man, get the 99 magnum
hope this helps