Hi,
Maiden flight today of my Sig 4*60 Arf with a Saito 100. Had to add 3 ounces of weight up front. Easy plane to fly and will do some aerobatics with the 100 up front although it is still breaking in. I changed the pushrods out, I thought the supplied ones were a pain. Basically, going to use this plane tp warm up with before flying the more sophisticated and faster ones.
Bill

Good to hear your first flight was successful.
Don't underestimate your 4*60..
Try increasing the throws on all surfaces almost double what they call for. Use that on high rates, slide the cg back 3/4 - 1inch and go fly.. It will be a totally different animal.
have fun