So -- no one truly multi-classes, right?

[Moomba33]

That's really nice to hear -- and from what I understand, a skilled SCH will spend a fair amount of time on DPS anyway, so the INT isn't truly wasted.

I may end up just becoming a SCH/SUM switch hitter rather than taking the time to level another whole class.

Healers do DPS using Cleric Stance which swaps their MND and INT. DPSing without Cleric isn't worth much later since the healer and caster gear separates and the healer stuff won't have any INT. So the few extra INT points won't help your SCH.

It's up to you whether or not it's worth swapping (as others have said, the item is cheap). From my perspective the difference is too small to worry about, but for others it may be more like "the cost is so small, why not be the best you can be?".
Don't worry about it much either way. Whatever you decide should be based on what's important to you as others are unlikely to notice.

[LineageRazor]

Healers do DPS using Cleric Stance which swaps their MND and INT. DPSing without Cleric isn't worth much later since the healer and caster gear separates and the healer stuff won't have any INT. So the few extra INT points won't help your SCH.

Emphasis on this. ^ Attempting to DPS without the CNJ cross-class skill Cleric Stance is a pure waste of time at higher levels. You can get away with it at lower levels because the values of your INT and MND are relatively close to one another, but the higher you level and the better gear you get, the more that gap increases.

And, sadly, because of Cleric Stance, your INT once again becomes completely irrelevant, because Cleric Stance allows you to use your MND in place of your INT. So, yes, INT points are still a waste when you're playing on SCH. Of course, for the reason I just posted in the previous sentence, the higher level you get the less important those 35 stat points become.

An associated danger that pretty much every healer has to deal with: Be very careful that Cleric Stance is turned off before you try healing someone, as your heals become super weak with Cleric Stance on (since you're using your pitiful INT in place of your MND).