Try using aqua putty in conjuction with the super glue gel. I'll put some super glue gel on whatever I'm using to mount my frag, and then place a piece of aqua putty over the super glue. I'll dry the bottom of the frag as best I can, and then put some super glue gel to the frag bottom and place in putty. Seems the super glue will give you fast attachment while the putty "cures." Works real well for me, and frag will encrust fairly quick over the cured putty. This is done outside of tank, and I can usually get my frag back into water after only a few minutes. If I then want to mount onto LR in tank, I'll repeat procedure starting on the bottom of the frag mounted piece of rock starting with super glue, then putty, and finally super glue over putty. QUICKLY place on selected spot in tank on LR. This can be "popped" off of LR later if you want to remove or move. Key to this method seems to be the use of a dry piece of rock as you base.