There is a seal that will cause at least that much gap. Look between the slide fascia and the body of the moho. See the seal? See any other anomaly?
You're probably good to go, but having read other threads, have gotten the paranoia bug.
Go enjoy your MoHo, and have fun!
2005 Georgetown 342DS XL, Full Banks Package
2005 Liberty Renegade 4X Toad
1989 Wrangler Sahara Toad
1984 19.5' Beachcraft i/o 5.o liter, 4-bbl (and you thought your Moho sucked gas!)
D/W Carole and Maggie the Teacup Lab (Black Chihuahua)