I do know MV CWA ballasts aren't very tolerable to dead or missing lamps, while HX reactors will last years with a dead or missing lamp. HX and reactor ballasts have fewer ballast losses as well I believe. I perfer HX and reactor ballasts over CWA.
They also don't tolerate shorted caps that well too so if I had a older CWA ballast with a non protected cap I would change the cap since if the cap blows or shorts the ballast will usually overheat.
They Sylvania lamps are a bit pink with the /DX ones. The pink tone sorta annoys me inside, but my skin doesn't look green at all. In fact, it's ALMOST as good as a MH lamp, although MH has better CRI. I have a clear Sylvania 175w merc and it works great too. The only times I DON'T recommend Sylvania to people is about CMH, CFL and LED. Phillips is the best for CMH and LED IMO and CFL is horrid no matter what brand you buy.
MH lamps come in 3,000K in most wattages if being too "white" is a problem , i own a 150W phllips 3,000K coated non-protected probe start medium base lamp , its a cram lamp
The CRI is to some extent a very relative characteristic. The colour temperature is in my opinion much more important, as the eye can adjust to a lack of certain colours, but cannot change the general appearance of the light. That's the reason why incandescents still exist today! Many people always preferred the soft light of an incandescent over fluorescents.