The micro spikes will shove in really nice if you sharpen them.
I have a small dremel with a cut off disc sitting right beside me as I spike.
I touch the very end of the spike against the wheel for just a second
on an angle to put a chisel shape to the end.
I do this with each and every one as I pick up the spike in the plier and touch
it diagonally to the disc to form the chisel and then insert it in the roadbed as normal.
Some reason the micro spikes are blunt on the end and do not insert well without
that slight taper at the end. It's a minor move after you get used to it.
They spike really well then and I can get the rail and spike nice and tight.
Try it and let me know if it works for you.
My railroad here is 20 by 46 feet and it's all laid in 55 and spiked that way.
It didn't take all that long once I got used to the extra move. (grind wheel)
Sure hope that helps