In an automotive 12VDC application, I want to use a pair of 2-coil latching DPDT relays such as Panasonic TXS2-L2-12V (https://www.panasonic-electric-works.com/pew/eu/downloads/ds_61022_en_txs.pdf), and connect the Set coils in parallel and the Reset coils in parallel, such as is shown in Figure 16a and 16b of Panasonic's "Relays Caution for Use" note (https://www3.panasonic.biz/ac/e/control/relay/cautions_use/).
In that note, when the coils are connected in parallel, they recommend placing a diode in series with each of the Set and Reset coils as shown in those Figures.
Question #1 is: Should I also place a coil suppression rectifying diode (e.g., 1N4007 or similar) in parallel with each of the Set and Reset coils?
This posting, while not concerning the connection of the Set and Reset coils in parallel, does suggest using a rectifying diode across each of the Set and Reset coils: How to protect bistable latching 2 coil relay with diodes?
Question #2: I plan to activate the Set and Reset coils via a manual SPDT momentary (On) toggle switch. Coils will be 12VDC. I plan to put the switch on the ground side of the coils (between the coil series diodes and ground). The relay data sheets I've read say that subsequent latching pulses after the first pulse on either the Set or Reset coil have no effect, so is it reasonable to expect things to work OK with a non-debounced, manual SPDT switch controlling the coils?