Please help

I am using 1320 mah packs on my 450 and want to upgrade to 2100 mah packs.
Problem is the packs are much longer and if I try mounting them flat they fit under the canopy but the heli is extremely nose heavy.
I can't seem to figure out another way to mount them.
Anyone using the 2100mah long packs could you please post a pic of how you have your battery mounted.
PS: I have an XL so it doesn't have an adjustable battery tray.