Honestly, I know of at least 8 people doing the 'level 2' mods though only 3 of them are qualified..
Peter Woodland, Ismael Jones, and Jack Lange's 'guy' whoever the hell he is?!
If they're being sold in GG&T I'd say its probably Jack Langes bloke.. or Woody..
F1 is a solid bit of gear, with an appropriate price tag its a great buy for anyone not looking to spend $1000.. I started out with 25 units, sold every one of them for $650 ea shipped.. with your basic mods.. nothing special.
Lately you can't pick one up for less than $800, worst still they're some of the very first machines made, and believe it or not, far uglier! lol
Anyway point being, If you've got $1000 to spend, Buy the Whites SPP, its a power PI with a warranty and kick ass performance.. (better than the F1 pre mod)
You're always going to be better off with an SD2200D or v2 than with an F1A4... hell I picked up a GP extreme for $1450 on Saturday (thank you QGS)
I would never spend $2400 on something heavily modified, that doesn't compare to a 2200 or better... and the F1A4 "even modified" DOES NOT!
Jack lange made his little video making claims that it was as good as a 3500, and most of us figured (sure, its been modded why not?)
Nobody seems to have noticed that he was using larger than average nuggets to do his tests... You take a stock standard 2200D out to that location, swing it over a 3 gram 10 gram and 54OZ nugget and you'll get the same response! UGH anyway enough ranting.
Anyway Just my opinion, I've had more than a little play time with the different level machines L1 and L2.. and compared to what I own GP Extreme, 2200, 2100, and my personal F1 (modified) machines, I'd say the F1 falls in between the 2100 and 2200.
Again, just my experience, and opinion on the purchase of "what i consider" to be over priced..
Love to hear some feedback from other users..