I suppose, according to strict Catholic teaching, it wouldn't be, but you have freedom in Christ. As long as a church's teachings are true to the Bible, you have the liberty to attend another church. But I would ask you,(you don't have to answer publicly) why attend such different traditions? Do you feel there is something in the CofG that you don't get in the Catholic church? What is it? The other question I would ask would be:what is your idea of church? is it what you yourself get out of it? or could you change that to include what you can give to others? when you have an answer, you might consider putting all your eggs in one basket, so that you can better serve God's people. :-)

There is nothing wrong with going to other church services as long as you attend the Catholic mass and recieve the Eucharist.

Sure There is nothing wrong with learning about God from different Christ based churches. My Mom was catholic growing up but finally began a relationship with God at 21 after going to a church in southern California called Calvary Chapel Costa Mesa. http://www.calvarychapelcostamesa.com/

This answer comes directly from a Catholic Priest (Father Ed Blanchett of St. Mary of the Lake, Lakewood NJ). It is a direct quote: There is no regulation against a Catholic attending a Protestant worship service out of curiosity, to accompany a friend, or to participate in something like a baptism/christening or wedding, so long as you keep in mind the guidelines that you mentioned (i.e such services do not take the place of our obligations as Catholics and we do not receive communion during such services) since this implies a union in faith that does not yet exist. The times that I've attended services in other Christian faiths I've found it amazing both in how they are similar to our own worship (e.g. Episcopalian services) and how God still speaks through their differences (e.g. AME Zion services.) A guideline released by the Vatican both for conducting and participating in ecumenical (promoting or tending toward worldwide Christian unity or cooperation) services is the Pontifical Council for Promoting Christian Unity document "DIRECTORY FOR THE APPLICATION OF PRINCIPLES AND NORMS ON ECUMENISM." You can find a copy of this at http://www.ewtn.com/library/CURIA/PCCUECU.HTM