Don't ask why I did this (didn't take long , anyway). Just that Haydos can and has scored against the best Australia has to offer;
1993/94
In a season where McGrath took wickets against everyone and NSW were the benchmark side, Haydos hit him for 173 in this match (out of 281 in the 2nd dig), didn't play in the return match;
http://aus.cricinfo.com/db/ARCHIVE/1993-94/AUS_LOCAL/SS/QLD_NSW_SS_04-07NOV1993.html
1994/95
Against Vic with Merv Hughes and Paul Reiffel, a damn-near run-a-ball double ton in the days when they were a rarity, especially in Aussie domestic cricket;
http://aus.cricinfo.com/db/ARCHIVE/1994-95/AUS_LOCAL/SS/QLD_VIC_SS_11-14NOV1994.html
Really kicked on after QLD won the Shield, was a huge reason why they won it regularly thereafter in fact.
1997/98
181 against a full-strength NSW side including McGrath, the Waughs, etc.
http://aus.cricinfo.com/db/ARCHIVE/1997-98/AUS_LOCAL/SS/QLD_NSW_SS_15-18OCT1997.html
1999/00 (season before getting picked in the Aussie side again
Against the Lee's and McGill in Sydney;
http://aus.cricinfo.com/db/ARCHIVE/1999-2000/AUS_LOCAL/SS/NSW_QLD_SS_19-22NOV1999.html
And they were just the examples I could remember off the top of my head. Fact is, before Haydos was picked again in 2001, he was
the most feared opening batsman in the country at home or away, on damp fliers (which there plenty of in QLD in the 90's) and roads. It didn't matter, he hit you and hit you hard.
As for the bloke, what I've heard about him suggests he's just a hard nut on the field. I'm sure he's a nice bloke generally.