re: Why don't more big recruits & underclassmen go to the CFL?

The CFL actually tried to expand and be a big boy years ago and it failed miserably. They know their nitche and stick to it.

A lot of CFL players have to still get other jobs in the offseason. It's Arena League type money, only you live in Canada so you are cold as hell and it all goes to taxes. The game is also quite a bit different with 3 downs and a wider field. A guy like JFF would kill it up there but many players would not. They also have the limited import rule and prefer to stick with players that are committed to being in the league as opposed to using it just to get to the NFL. The facilities are also less than what most of these kids are used to in college, especially the SEC.

I actually like the CFL. It's kind of a fun alternative and the weird rules are cool (like if you get a touchback you give up a point and there is no fair catch rule). With 3 downs it is also really hard to run down the clock.

Most of all though I think is just the cultural shock for most American players. It's a huge adjustment to playing up there from what they are used to.