I will have to reclass from my heavy MOS of Signal to a lighter one. 68W falls within the work limits but my question is... hope someone knows... Can I pick up th M6 as well? I'm sure there will not be a problem with the 68W portion. I have prior CNA work, my Asvab scores are high enough.

That depends on why you are being reclassed. If it has to do with medical issues (e.g., chronic back pain), then 68W and especially the M6 ASI are NOT good choices - aggravation of many medical issues is common in the healthcare fields.

68W includes the generic "field medic" job - and many are assigned to line units and carry full gear PLUS their medical equipment (IVs are not light). The M6 (LPN) job is less likely to be in the field - usually in a hospital or clinic - but almost always involves moving patients who can't move themselves, like that 220-lb grunt who's in a bed and needs to be turned every two hours - by YOU.

Consider carefully, Grasshopper. If your reclass is for some other reason, and you have the physical strength/endurance for a 68W job, then go for it.