ok to start with you dont want tide when shooting a sandeel net as the small meshes hold the water making it very heavy or near impossible to hold onto this is one reason it is pulled very slowly also you need it to disturb the eels enough to get them up from the sand and be hurded buy the wings of the net (the larger 22mm mesh sections each side of the bunt) which is usualy 5mm mesh.
as for shooting the net by wading this is very limited to what you will catch but ok with very small nets,your net will probably fish fine if you use it with no tide pull as this is what is lifting the foot rope clear of the bottom (bad thing)as you need it stiring up the bottom.will post more later,lee