Weight is staying the same...

You can tri to increase your swimming frequency, also include freq str training that is low wt and high repititions, that should help.

That really helped to lean me out, I started out at 228lbs and now weigh just about 190.

I had the same issue, I dropped down from 230lbs to about 180lbs and have been stable for a while.  Once I hit about 190lbs, it took me almost as long as to drop the last 10lbs as the first 40 because I was in the gym a lot.

Two things I noticed.  The more work I did in the aerobic threshold the more lean I got, losing fat an bulk.  If I upped the running (it tended to send me anerobic) or the gym, then I tended to bulk up.   The other thing was the type of workouts that I was doing.  The more long aerobic workouts that I did, the more I leaned out.  My muscles toned up and I leaned off much of the bulk whether it was a run workout, swim workout or bike workout...

The other aspect was with diet.  It's a pain to do but if you move to lots of small meals during the day then you might see those results from the kick to your metabolism.  I can never do it for very long because the rest of my life gets in the way, but it works when I do it.  Add that to drinking water first before I ate anything really helped me feel fuller for longer, almost as if I mistook my thirst for hunger...

I don't know, but that's what worked for me.