The problem with using insulin with every freakin' meal, specially when one's total daily dose is sbstantial, is that it destroys the body's ability to use insulin effieciently.
The every meal method might work great for adding size for a little while, but as time goes on...and it won't take long...your body will begin fighting against you by reducing insulin sensitivity and decreasing the number of Glut 4 transporter sent to the surface of the muscle cell. The end result is that you can no longer efficiently absorb the nutrients you are eating.
In other words, although you may be using a lot of insulin, you won't be able to get anywhere close to maximum benefit from it...not to mention the potential health problems which can arise from such irresponsible use.
The goal should not be to use as much insulin as possible, but to make the insulin you do use work as well as possible. I believe insulin resistance (largely due to irresponsible insulin & GH use, although there are certainly other contributing factors, such as a high carbohydrate intake--especially refined carbs) in combination with Glut 4 issues is a big part of the reason why the appearance of some BB'rs has deteiorated. I don't have any concrete evidence for the following statement--only theory--but I believe the inability to absorb the massive amount of nutrients being consumed, due to the factors stated above, can potentially lead to atrophy of the muscles (it seems to occur more in the limbs for some reason...or it could just be coincidence), an odd, lower quality look to one's overall musculature, and the pregnant look when see on some guys. When cmbined, these "side effects" an lead to a very unappealing look to the physique. Palumbo seemed to have this look, as did Kovacs.
These effects don't seem to take place right away. In fact, many BB'rs who go this route (massive insulin and GH use without any regard for insulin sensitivity/Glut 4 transportation) often make unbelievable gains in muscle tissue over a short period of time, but after several years, they seem to start having problems. The drugs they are using no longer seem to work as well and eventually, even holding onto the muscle they once had becomes dificult. In the end, they end up smaller--often with a disproportionately massive gut--and an odd look to the musculature, to say the least. Ultimatey, their physique are destroyed. You can only fuck with the body's phyiology for so long until it bites back, especially when comes to one's metabolic health.
I normally won't throw out comments like this without any evidence--I will just keep my thoughts to myself until proof becomes available, but I really think there is something to this here. Perhaps if I get the time I will post my thoughts on the matter regarding "how" I think this might be occuring.