Yeah I do that too when I try to concentrate sometimes but I still force myself to stay calm at times and just pinpoint my weakpoints.  What's tense, what is doing what... 

I actually like the Gibralter practice pad.  I do also have the hasen futz (2 of them for double kick practice), drum mutes for my set and the Gibralter.  The hasen futz is the most quiet out of all of them with the Gibralter in second.  But the hansen futz I use if I just sit in front of the tv with a metronome going and give it for a long time.  They are nice for building stamina and strength but they don't exactly feel like a real pedal.  That is why I really like the Gibralter practice pad.  I can use my pedals and practice quietly and get used to my pedals and learn what's going on with them. 

Yeah that's all you really need is your Gibralter practice pad and your makeshift pad.  One things is maybe add another makeshift pad or two where you would put the toms.  It is important to practice rudiments but if you have too much practice on the one practice pad then you won't be able to carry it all over the drums if you just use the one pad.  So yeah that might help for transitioning to the other drums as well.