Hi guys and girls (if any

.
The Electric Shock form PA with no landing gear and flight ready weights about 410g.
With landing gear and the extra "tail weight" to balance the plane is about 435g. Can somebody give me some hints about how much will this the extra ~8% weight increase influence the plane?
What if I use a slightly bigger battery increasing the total weight to about 450g?
Thanks for you help.
Peter