Putty

Iceblend,
Sounds strange, but I use plastic to fill the seams.
I lightly sand the mating syrfaces of the tank and seat - the aim here is for a perfect flat surface (those aligning pins have gotta go.......)
Once that's done, I hold the two halves together, fill the seam with probably a little too much Humbrol Liquid Poly (being careful not to allow runs on the exterior surfaces), let the glue soften the plastic a little, then squeeze the two halves together.
Excess softened plastic will ooze out of the seamline, effectively filling the gap with plastic.
The drying time is a little longer for this "filler" than for most other fillers, but at least the cured filler will be of the same hardness and consistence as the rest of the tank - I've had superglue and other fillers sand back at different rates than the tank or seat they're on, making a slight ridge in the top of the tank that was hard to get rid of.
Cheers'
LeeTree

ic...thnk u! Btw...wat is crazy putty!?

I use normal white putty to fill spaces on my models and im using it on my P-38 and it works miracles....i've used it to fill the spaces between the gun platform and the fuselage.......the space between the intake scoops and the housing on the side of each boom..when sanded down made an even and very nice curve, i was pleased about that,.....and ive used it to create the walls in the landing gear bay since the thing was left open and u could see all the way to the front and back....so that fixed that. Its the first time ive used the putty but after u get past the mess it works quite well. The filling it with plastic tecnique yes effective.. but also messy if you let it get out of hand and is much harder to get off your fingers and if your not carefull.... may ruin your model...so really its just works best for you.

To sleep...To DIE no more!!!