使い方を間違うと大変。1DMLで複数オブジェクトInsertする方法

List<Sobject> sobjList = new List<Sobject>();

List<Sobject> insList = new List<Sobject>();

//11オブジェクト、12レコードを追加
Sobject sobj1 = new Account(Name = ‘aa’);
sobjList.add(sobj1);

Sobject sobj2 = new Account(Name = ‘bb’);
sobjList.add(sobj2);

Sobject sobj3 = new X1__c(Name = ‘bb’);
sobjList.add(sobj3);

Sobject sobj4 = new X2__c(Name = ‘bb’);
sobjList.add(sobj4);

Sobject sobj5 = new X3__c(Name = ‘bb’);
sobjList.add(sobj5);

Sobject sobj6 = new X4__c(Name = ‘bb’);
sobjList.add(sobj6);

Sobject sobj7 = new X5__c(Name = ‘bb’);
sobjList.add(sobj7);

Sobject sobj8 = new X6__c(Name = ‘bb’);
sobjList.add(sobj8);

Sobject sobj9 = new X7__c(Name = ‘bb’);
sobjList.add(sobj9);

Sobject sobj10 = new X8__c(Name = ‘bb’);
sobjList.add(sobj10);

Sobject sobj11 = new X9__c(Name = ‘bb’);
sobjList.add(sobj11);

Sobject sobj12 = new X10__c(Name = ‘bb’);
sobjList.add(sobj12);

Map<Schema.sObjectType,List<Sobject>> objMap = new Map<Schema.sObjectType,List<Sobject>>();

for (Sobject sobj : sobjList) {
    Schema.SObjectType objType = sobj.getsObjectType();
    if (! objMap.containsKey(objType)) {
        objMap.put(objType , new List<Sobject>());
    }
    objMap.get(objType).add(sobj);
}

for (Schema.SObjectType sType : objMap.keySet()) {
    for(Sobject obj : objMap.remove(sType)){
         insList.add(obj);
    }

     if( insList.size() == 10 || objMap.isEmpty()){
        Insert insList;
        insList = new List<Sobject>();
    }
}