Proboscis rank 4 and 5?

[ReinAxefury]

For some reason, ranks 4 and 5 of the Mod Proboscis for Helminth Charger don't seem to give anything, is it a visual bug on the mod or it actually doesn't do anything and only makes the mod cost more to equip? I bought the Nidus Deluxe collection the other day and i wanted to give my Helminth a chance, but now im not sure if i should.

 

Edit: Im aware it's not the first time someone post about this, but i've never seen an actual response for this issue.

Edited July 29, 2018 by ReinAxefury

[hellodownthere]

Rank	Range	Damage	Cost
0	15	25	0
1	20	50	1
2	25	75	2
3	30	100	3
4	30	100	4
5	30	100	5

seems that there isn't a point in ranking it up beyond rank 3... maybe the cooldown of the ability gets shorter ?

Edited July 29, 2018 by hellodownthere