Dude thost boots are polar opposites. SPKs are a fat boot, and fit somewhat loose on a normal foot. Hot Doggers are a a tight fitting boot, so that your ankles aren't flying around, which also reduces toe and shin bang. Try them on... don't do it off of look alone.
please just stop now...comparing these two boots makes about as much sense as saying "for my next car im trying to decide between a lamborghini and a bicycle"
"Just ahead, over the rolling wheatfields all golden beneath the distant snows of Estes, I'd be seeing old Denver at last. I pictured myself in a Denver bar that night, with all the gang, and in their eyes I would be strange and ragged like the Prophet who has walked across the land to bring the dark Word, and the only Word I had was 'Wow!'"
SPK are 106mm wide in the box box. The FTs are narrow with a last of 98mm with an xtra 2mm in the toes. If you have a wide foot, the FTs are going to be tight on your foot unless you get work done to the shell/liner. Your best bet would be to GO TO A BOOTFITTER and try each boot on. Or buy from a website that allows you to return whichever boot doesnt fit.