Solar question. Two panels same 24v , Series/parallel math

OK. So I have these panels. 280 watt LG,s I currently use one with an ecoworth 20 amp mppt. Max volts is 50 volts for controller hence one panel..

I can get 17 amps or so out of it normally...

This is panel specs..

Max Power Voltage (Vmp): 31.5 Volts
Max Power Current (Impp): 8.97 Amps
Open Circuit Voltage (Voc): 38.9 Volts
Short Circuit Current (Isc): 9.56 Amps

So I want to carry another panel and upgrade the mppt. I would assume I should get a 40 amp..

I was looking at the cheap tracers, or the renogy rover..

Since this is my first solar set up I have nothing to compare it too.. so here are some questions I have..

1. Does the one panel above specs dictate that 17 amps is about the most I can get from just the one? I figure IMPP at 9 amps im kind of doubling it because of the higher voltage panels and I only need 14.8 for bulk... I dont quite understand it somewhat.

( Side note: When I was 5300 ft in NC I was blasting out 19 plus amps at 5pm...lol. Panel showed 240 watts.



You see how late in the day it was... ( Balsam Mountain NC)



2. With that said if I get normally 16 amps then if I use 2 panels and get a new controller (40amp) then I should be looking at 32 amps or so.. Does this sound correct?

3. Here is the kicker and I probably will not know until I try.. I this I need to understand ..

If I have two identical panels as specs show above, Would I get more amps putting the two panels in series . Putting in series would get me closer to the max 100v the controllers could handle.

Or, Put two in parallel? Will that net me max amps since this method doubles the amps.

4. The other trouble is both controllers I believe have a max of 520 watts. ( Ill have 560 watts)

This large panels are portable. I am not interested in more then two panels...

Eventually I have a plan for flex panels on the roof with a separate charge controller. But that will be another time.