Easymo,
I am not familiar with what you mean as "class 1 felony".
In any case, taking a blind stab at this. In some cases one felony is plenty. I happen to take a real dim view of child molestors, child killers and those who assault kids. Not talking spanking here for those wh jump to conclusions. I mean those who just get their jollies hurting kids.
If it's a crime against property I take a much more lenient view. Lopping off the dominant hand comes to mind.

Seriously, it depends n what you mean by that felony level. I have to say in a fair number of homicides it's a one time deal and not much likelyhood of recidivism. As it is now, given the rate of convictions for criminals the norm is a fair number of offenses before incarceration. Not just a one time crime but a string of several before they are caught.
After a while you tend to want to smack flies with a hammer after seeing the same thing being done by the same offender. The number of victims gets pretty large in the case of most felons, particularly in property crimes. Perspective is a hard thing to maintain.
Did this answer your question?
Here is a quandry. What do you do with a career criminal that is a juvinile? Think I'm kidding?? Nope. One made the news in Tucson the other week. He was on his 5th felony arrest. They others ranged from autotheft, burglary, sexual assault and an aggravated assault. The latest arrest was for attempted murder. Here is the real kicker. He's only 10, according to the news story I heard on TV. Haven't seen anything else but I only see the papers infrequently since I'm out of town most of the time.
Punishment is a real heavy item. I think that most cops just look at it in one way. What will keep the offender from hurting anyone else? Protecting the victims is the primary goal.