More than 1 one CCW and red dot sights

For those who carry 2 or more CCW's and use a red dot sight, do you have a red dot sight (RDS)on both/all of your carry weapons and if not does it present any issues when you switch between weapons? I have a a Glock 48 that I've designated as my primary CCW. I initially thought about adding a RDS but decided that because the G48 is so slim i wanted to keep it pretty much stock(added war and tactical sights). I've recently gotten a Canik TP9 Elite SC that has a RDS and I can ready see what do many people swear by them. My Wife even asked for one after shooting 12 rounds through the Canik. Now I'm wondering if I should add a RDS to my G48 to be able to keep my training consistent. Thanks via /r/CCW https://ift.tt/2XmzbOc