Harvest enchament clearification

I cant find clear answer - I want to be sure that items like Imperial Bow with Implcit "24 increased Elemental Damage with Attack Skills" after Harvest bench enchantment adding "Quality does not increase Physical Damage Grants 1% increased Elemental Damage per 2% Quality " will not replace the original Implict" (except loosing 5000 Vivid Lifeforce i'm afread to reduce increase elemental dmg from 24 to 14 (28 quality).

I want to be sure that it will just add and it will give 24+14 (in total 38) increase elemental damage.

I really appraciate clear (best would be confirmed by experience) by experience answer.

Yes it will not replace it. Harvest enchants are "enchantments" while the thing you are referencing is an "implicit." They are not the same kind of mod.

But it will replace the physical damage you get from the 28% quality. This will be lost.

(And your bow is missing a suffix.)

Thank you for explain and checking my equipment and advise :) I know 1 suffix is missing - I play 3rd month actually - I'm not very rich for spamming exalts and annulments after adding divine mod: attack modifiers ( I need accuracy) cannot be changed. Is there any safe way - witout risk of loosing current stats of adding a non random mod for this bow?
Adding enchant: so speed instead of quality is only way to improve this bow damage ( it will give only 3% so improvement will be almost non visible for 5k lifeforces worth 2 divines)

How many ( statisticaly) divines I need to significantly improve its stats - I see stats are below average in its range?

If you are poor, that enchant is not a good move. The damage difference is so small you won't notice it. It's really for people who don't care as much about currency and want to min-max.

Let's get this out of the way--there is no risk-free way to make this weapon better. With that said, if you need the accuracy, the LEAST risky way to improve is to remove your craft, 3-Crafted Modifiers + Prefixes Cannot Be Changed. Then farm and use an Aislinn. There is a 2 in 3 chance you will NOT lose your accuracy mod (but do note that means 1 in 3 you WILL lose it). As long as Aislinn removes one of your metamods, you can then remove the other, craft something to block, and unveil a mod (hopefully one that helps you though there are several that are good). Then you can craft a 6th mod that you want.

As I said, this is NOT risk-free and there's a 4-divine cost plus an Aislinn. But this is the best you can do for the cost.

Note that your bow is on a weak base. So if you made the bow by essence spamming a base, you might want to instead invest in a fracture on a stronger base. But I'm guessing you did that for cost.

Thank You very much for advise. Is it really my bow weak? Poe trade shows it has 1200 dps at its worth over 10 divines. Looking for other bows - i see that for cos of 30 divines i can buy a bow with 150 dps more... without accuracy on it so I will have to deal with accuracy issue. I dont feel its worth to spend 30 divines for such change.

Anyway - without exchanging the bow im struggling to improve my build with getting significantly. I cannot live without: ice shot +pierce support +aw added cold dmg +elemental penetration (28%) + faster attack. Any advise for better gems combinations or gear exchange ? I have also Hyrris Ire armor but this armor is witout live on it (3000 evasion) and Im dying more frequently than wearing my 1700 evasion +1500 armor + 115hp +9 % hp. Its giving like 13% more elemental dmg only.
Im cosidering to migrate to critical character - since I crafted critical chance on bow. Howewer it will cause other isdues - for a cost of about 22% regular damage I can have about 20% of daealing 250% dmg muliplier. Is it worth such migration? Resignation from stable 20% more dps for having 20 chance?
I really apritiate for build advise - I have big issues at 83 monter level maps at tier 16 and at delve depth below 100 - dying to easyily ( all res except chaos (50%) maxed out) and 5400 hp. In game dps shows 220 000 in pob - 560 000.

Your character's main issue is that you are running Eternal Blessing, which limits you to 1 aura, without a good reason to. I would instead look to reduce the mana cost of your Ice Shot and use your mana to reserve auras. I would also path up instead of down from the start to get Charisma wheel to help with that.

For pierce, you want to get pierce on your glove implicit as well as bench on gloves. That will let you get rid of Pierce Support, which is a horrible support. Drop Faster Attacks for Inspiration Support to help further with mana reduction (faster attacks is not a good support as it is increased and not more attack speed, which gets drowned out as you get more attack speed).