Before I got my SIG, I carried an XD9SC that replaced an XD40 Service model. I was glad I made the switch to the SC. Much more manageable for carry IMO.

My son-in-law has a XD in .40 cal and a Sig P230 in .380 and I see him carry his Sig a lot more often because of concealment ease and weight.

He was a police office, so he's carried for a number of years.

This is not a caliber statement, just a size & weight statement.

I believe that "heavy" & 'big" get "real old, real quick" from my experience.

But after you hear everyone's advise, you ought to carry what you want to.

It's a great idea to carry a friends gun (if they will let you) for a couple of day's and see if it's comfortable for you.

My EDC is my 9sc. However it's not unusual for to swap out the 9sc for the 40 service on occasion.

1. If you can conceal the Service model depending on your size go with it.
2.The subcompact will be easier to conceal.
3,The subcompact comes with a grip extension so if you want a bigger grip(same size as service model)
4.You can make a sub bigger,cant make the service model smaller.
5.Also subs are generally easier to carry since there lighter and smaller as far as wearing a gun on you...