TDA, your gonna have to do more than just throw out single lines if you want to discuss things. I've got no idea what the point your trying to make but I'll respond to the one I think you are.
Reserve heavy forces are interesting to look at but due to the rules this edition there are a number of limitations to them, particularly close combat ones.
1) Only 50% of an army can be in reserves
2) If those are combat critters only then they are sitting around in position for a turn allowing the enemy to position themselves to take the charge, shoot you in the face, and even counter charge you if they want.
Thats why I suggested that its going to be rough (not unplayable) and that I recommend you roll strategic, you want to maximise the target saturation of both you on board and reserve presence as well as ensure that your reserves don't linger off the table. The most effective ways of doing this for nids are...
1) running the swarmlord (a points intensive model that I will get to when I do our HQ units)
2) An aegis line with comms relay
3) rolling on the strategic table, the results either protect you on board presence, ensure that your reserve units arrive where or when you want them, or prevent your enemy from efficiently bringing their own forces to bear.
Of particular problem to nid reserve lists is the synapse issue, yes they don't need to roll the turn they arrive but they will need to roll to do anything T3 onward. In fact you probably need even more synapse in such a reserve army to prevent the enemy from tacking your force apart piecemeal. If you don't have enough synapse n you 50% then you enemy can kill that and then largely ignore that portion of your army as unless you bring in your synapse there (wondering why you would then reserve it at all in that case). This means that you need more synapse than a regular nid list (I wouldn't say twice as much, but definitely more)