If you wanna try to backcue/scratch a bit with them, hold the wax by the edge.
It'll cause you to apply just a bit of lift to the record so it doesn't apply so much pressure to the platter mechanism when you backcue. Be reasonably gentle with them and you can get a bit of work done with them.
As for the 1800s being harder to use (at least on the mix side), I dunno...
Some say stick shifts are harder to drive than automatics, at least at first, but
I can't say that learning to drive a stick in grandpappy's old 3-speed ford truck is
any more difficult than a 5 speed honda. Then again, when I learned both the 'tables & the truck I was a teenager & didn't know enough of the good to know what was bad, nor did I know CARE what was bad as long as I had wheels that worked!!
BTW - the biggest difference for me to adjust to between
1200s & 1800s was the super-strong pulsing the quartz lock does on the 12s.
I can't begin to suggest what 'tables/mixers to use to scratch or blend, except based on budget & need - plenty of 'em work fine (well, fine enough), but I can tell you again to practice mixing with those 1800s you got - if you can work an accapella over an instrumental & not have any bending or warping going on with the vocals as the mix runs, you'll be even better than all good in the 'hood.
Spin is right, 1200s are pretty much everywhere, EXCEPT B.E.T.'s Rap City in the basement. Numark everything all day long - an M.C.(slash aspiring dj) potna of mines hipped me to that a few weeks ago.
good luck...