Merlynr what you will find is narrow and shallow holding power from the weld. This is a guarantee, the weld will not break, a narrow shallow section of the rail will break away with the weld. That is a characteristic of the make up of rail. Widen and thicken the bead and you will get the same results. The rail is strong enough, anything welded to it will be a weak link. The only exception here would be to bolt the wedge and weld it to the base, most of your holding strength will come from the bolts. Same goes for the end plate that will hold the cylinder in place. At least 1/2'' or better yet 3/4'' bolts and a heavy weld would make it strong enough. With out the bolts you are asking for trouble.