If your account is a DDS rusher, I assume that you only PK on it?
Just to elaborate on what Stui said above, summoning has absolutely no affect on your CB level inside the wilderness, as the extra levels you gain off summoning just appear as an "extra" addition to your combat level. So if you were 90 cb and trained your summoning and gained 5 combat levels from it, inside the wilderness you would still be 90 cb, but it would just show the extra levels beside your combat level (90+5).
Those 5 levels mean nothing however. For example, if you are in level 1 wilderness, you will not be attacked by a level 96 player because your combat level is 90+5.
If you stake however, your combat level is shown as one collective level (95 cb). So this can have a big affect on your pure if he is created for staking, as it gives you numerous unwanted levels that will affect your performance in the DA.
Hope that helps a bit.