Another one has let the smoke out

[Serum]

there are to220's available with low internal resistance as well.

Brian was mentioning the TO220's because of the for him more service friendly point of view. He says it clearly.

It's not a fact that TO220 is an old design, there are still new powerfetts coming out, that i would not use in a smd package.

the better the quality of the blockwave, the less hot the controller will be. the faster the fetts, the better, and the lower the internal resistance the better too.