i currently have a cci vsc phantom and i want to make a few mods to the gun. I found that the 12 g changers can be kind of annoying at times so i bought a 3.5oz co2 bottle but i really hate how the gun looks with the bottle vertically connected to the gun. So...im trying to find a drop that can be used with the Adjustable T-stock that i already have on this gun but im not sure which one. I dont want the drop to leave such a huge gap between the stock and the 3.5 oz tank. i would appreciate recommendations

im looking for something like this but i dont know what brand it is. seems to be closer to the t stock than the regular cci drop forward
Also if i shoot fast with the palmer's stabilzer will it keep the fps from dropping. When i shoot multiple shots 10-20 without the gun cooling down fps seems to drop all the time. Lets say i shot about 15-20 shots, i see the gauge on my gun go down to 400psi. If i keep shooting with this amount of psi on the gun, it will drop to around 250. I have to wait a bit before the psi goes back to around 700psi and will shoot at a normal 270-275fps. If i do this with a 3.5oz and i shoot 20 back to back shots would the cooling of the tank cause a drop in my fps?
Also if i shoot fast with the palmer's stabilzer will it keep the fps from dropping. When i shoot multiple shots 10-20 without the gun cooling down fps seems to drop all the time. this i do not likey