Question about Pentax XL 40mm in C5+

I'm looking for anyone with experience using a longer FL like a Pentax XL
40mm in a Celestron C5+ (125mm, F/10).

I am thinking of expanding my EP collection for wider FOV. I have a 32mm TV
Plossl, which is currently my favourite EP, followed by a 20mm Orion
Expanse.

My concern is that with such a large FOV that a 40mm will offer, will I hit
the FOV limit of my scope?

Should I re-consider and look at a longer FL in a plossl?

Thanks,

Ed L.