thanks LL, totally agree especially the need to have money with considerable number of books - some suggestions of 1000($or£, up2u) with at least 20 books. Too much for some I suspect
think the workload could also be prohibitive especially if you want to generate your own arbs and not rely on a service which is least attractive option i.e cost of subscription, limited number of arbs/month, difficulty on getting on at advantageous price etc.
again thanks for the hint - keep you posted
Odysseus