Recommended L96 Upgrades

[thedexter]

Just picked up a L96 and bought the Army Force Enhanced Upgrade Kit for L96 (yes i know its not PDI but i just want to try out sniping/see if i like the play style so trying minimize costs for the time being, reviews seem fairly positive)

The kit parts are in the picture below and take care of:
-Upgraded spring
-metal upgraded trigger box
-upgraded cylinder
-upgraded piston&spring guide
-smaller parts rubber o-rings, screws, metal latch, washers

TL:DR, Main question, anyone know what the standard Well Hop-up and bucking is like?
And any more upgrades that are recommend?

cheers, dexter