Bonded Summoner - player & DM experiences?

[Vidar]

Ah, there is the problem, and what causes the balance issue. By skipping two skill ranks you gain abilities two levels earlier than your fellow players. As for the wiz5/bs5, he's the right power level. Your typical 10th level PC fighter* can turn a a Huge elemental (any variety) into cheese whiz.

* Human Ftr10 CR 10; HD 10d10+30; HP 90; Init +6; Spd 30’; AC 28; BAB/Grppl: +10/+14; Atk +18/+13 longsword +2 (1d10+9); SA none; SQ none; AL N; SV Fort +10, Ref +8, Will +6. Stats: Str 18, Int 10, Wis 10, Dex 14, Con 14, Cha 12.
Feats: Combat Expertise, Cleave, Exotic Weapon (bastard sword), Great Cleave, Improved Critical (bastard sword), Improved Initiative, Improved Toughness, Luck of Heroes [PGF], Power Attack, Weapon Focus (bastard sword), Weapon Specialist (bastard sword). +2 more
Equipment: gauntlets of ogre strength +2, full plate +3, longsword +2, large shield +2, ring of resistance +2, amulet of natural armor +1. Potion of haste, heroism, potion of cure serious wounds (3d8+5) x3. +6k cash

Improved Toughness (CompWar): Gain HP equal to your HD. Each time your HD increase gain 1 hp.
Luck of Heroes (PGF): +1 luck bonus to all saves, AC.

The huge elemental is not that far behind a 10th level fighter if not equal to a 10th level fighter. And I am still a 7th level wizard. At the same time. THe getting into the summoner class still doesnt fix the imbalanced in bonded summoner. If that were dropped and I were 5th Wiz/5 Bonded Summoner, I would still have a huge elemental. We have decided to insert at 5th bonded summoner a 12HD Large Elemental, and then at 7th carry on with a 16HD Huge. Meaning at 10th Bonded summoner it will max with a greater elemental rather than an Elder Elemental. After a couple of sessions with this we are goign to re evaluate the situation.