Moving to a narrower board?

What's up guys?
At the moment I have only one board in my place (there are two old ones on my aunts, for when I get to surf there) and that made me think it could be a good idea to have a reserve board on my quiver, in case this one needs fixing.
I also was trying to use this excuse to try some new measures. I noticed on a few bigger days, or when surfing hollower waves, once in a while I'd have trouble engaging the rail when heading to the flats with some good speed. I know this is something that isn't completely board related and I should work on being able to get more pressure on my feet on those situations, but I was wondering if a narrower board could make it easier. Currently I have a 6'0", around 20" wide (had to measure it).
I found a board that's 5'10" - 19 3/8" - 2 3/8", 4+1 fin setup. I think I might lose some paddling with those measures, but maybe I'd win some response once I'm on my feet.
What do you guys think? I was wondering if even though it is narrower and might give me a good response the board could be small for bigger waves (which is where I'd need that better response at higher speeds), making me have to get on them on the critical.
At the moment I have only one board in my place (there are two old ones on my aunts, for when I get to surf there) and that made me think it could be a good idea to have a reserve board on my quiver, in case this one needs fixing.
I also was trying to use this excuse to try some new measures. I noticed on a few bigger days, or when surfing hollower waves, once in a while I'd have trouble engaging the rail when heading to the flats with some good speed. I know this is something that isn't completely board related and I should work on being able to get more pressure on my feet on those situations, but I was wondering if a narrower board could make it easier. Currently I have a 6'0", around 20" wide (had to measure it).
I found a board that's 5'10" - 19 3/8" - 2 3/8", 4+1 fin setup. I think I might lose some paddling with those measures, but maybe I'd win some response once I'm on my feet.
What do you guys think? I was wondering if even though it is narrower and might give me a good response the board could be small for bigger waves (which is where I'd need that better response at higher speeds), making me have to get on them on the critical.