Any performance/other concerns for having many fixed asset tax books to one corp book

We are looking at using tax books to record impairments and cap interest that relate to assets in our corporate book.  We have previously looked at impairments functionality but this did not meet our requirements.  My question relates to any concerns with having many tax books associated to a corporate book for performance/other reasons.  We are also enabling GL post on these tax books and expect to have 5 tax books associated to the corp book which has approx 25000 assets.  This is just relating to one of our business areas and we have other corp/tax books in our environment